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Context of '(10:28 a.m. September 11, 2001): Falling Antenna Suggests North Tower’s Collapse Begins in Its Core Area'

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Bomb damage in underground levels of the WTC in 1993.Bomb damage in underground levels of the WTC in 1993. [Source: Najlah Feanny/ Corbis]An attempt to topple the World Trade Center in New York City fails, but six people are killed and over 1,000 injured in the misfired blast. The explosion is caused by the detonation of a truck bomb in the underground parking garage. An FBI explosives expert will later state, “If they had found the exact architectural Achilles’ heel or if the bomb had been a little bit bigger, not much more, 500 pounds more, I think it would have brought her down.” Ramzi Yousef, who has close ties to Osama bin Laden, organizes the attempt. (Friedman 3/30/1993; US Congress 2/24/1998) The New York Times will report on Emad Salem, an undercover agent who will be the key government witness in the trial against Yousef. Salem will testify that the FBI knew about the attack beforehand and told him it would thwart the attack by substituting a harmless powder for the explosives. However, an FBI supervisor called off this plan and the bombing was not stopped. (Blumenthal 10/28/1993) Other suspects were ineptly investigated before the bombing as early as 1990. Several of the bombers were trained by the CIA to fight in the Afghan war and the CIA will conclude, in internal documents, that it was “partly culpable” for this bombing (see January 24, 1994). (Marshall 11/1/1998) 9/11 mastermind Khalid Shaikh Mohammed is an uncle of Yousef and also has a role in the bombing (see March 20, 1993). (Gumbel 6/6/2002; McDermott 9/1/2002) One of the bombers even leaves a message, which will be found by investigators, stating, “Next time, it will be very precise.” (Neumeister 9/30/2001)

Jerome HauerJerome Hauer [Source: Public domain]New York City Mayor Rudolph Giuliani establishes the city’s Office of Emergency Management (OEM). This is tasked with coordinating the city’s overall response to major incidents, including terrorist attacks. (Robinson 9/12/2001; 9/11 Commission 7/24/2004, pp. 83-284) It will also be involved in responding to routine emergencies on a daily basis. (9/11 Commission 5/18/2004 pdf file) OEM comprises personnel drawn from various City agencies, including police and fire departments, and emergency medical services. It begins with a staff of just 12, but by 9/11 this will have increased to 72. Its first director is counterterrorism expert Jerome Hauer. (Kennedy 7/27/1999) Richard Sheirer will take over from him in February 2000 and will be OEM director on 9/11. (Griscom 10/15/2001; Jenkins and Edwards-Winslow 9/2003, pp. 12 pdf file; 9/11 Commission 5/18/2004 pdf file) OEM is responsible for improving New York’s response to potential major incidents by conducting regular training exercises involving various city agencies, particularly the police and fire departments (see 1996-September 11, 2001). (9/11 Commission 7/24/2004, pp. 283) According to Steven Kuhr, its deputy director from 1996 to 2000, one of the key focuses of the office is counterterrorism work, “responding to the consequence of a chemical weapons attack, a biological weapons attack, or a high-yield explosive event.” (CNN 1/16/2002) Furthermore, OEM’s Watch Command is able to constantly monitor all the city’s key communications channels, including all emergency services frequencies, state and national alert systems, and local, national, and international news. It also monitors live video feeds from New York Harbor and the city’s streets. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 283, 542) In June 1999, Giuliani will open the OEM’s Command Center on the 23rd floor of World Trade Center Building 7 (see June 8, 1999).

El Shifa Plant in Sudan.El Shifa Plant in Sudan. [Source: US government]The US fires 66 missiles at six al-Qaeda training camps in Afghanistan and 13 missiles at a pharmaceutical factory in Khartoum, Sudan, in retaliation for the US embassy bombings. (Gellman 10/3/2001) The US insists the attacks are aimed at terrorists “not supported by any state,” despite obvious evidence to the contrary. The Sudanese Al Shifa factory is hit in the middle of the night when it is unoccupied. Intelligence will later suggest that the factory had no links to bin Laden (see September 23, 1998). Between six and 30 people are killed in the Afghanistan attacks. But no important al-Qaeda figures die. (Hirst 8/23/1998; Weaver 1/24/2000; Wright 2006, pp. 285) At least one of the missiles accidentally landed inside Pakistan and Pakistan may have been able to build their own cruise missile from examining the remains. There are additional reports that bin Laden was able to sell unexploded missiles to China for more than $10 million. (Wright 2006, pp. 285) President Clinton is soon widely accused of using the missile strike to distract the US public from a personal sex scandal (see August 17-Late August 1998).

A training exercise based around a simulated terrorist attack is held at New York’s new emergency command center on the 23rd floor of World Trade Center Building 7. The exercise, which lasts 24 hours, is intended to test New York’s response to a biological attack. Many city, state, and federal agency officials, including officials from the Department of Defense, participate. The exercise takes place as the new emergency command center is being unveiled, with a small group of reporters being escorted through it today (see June 8, 1999). (CNN 6/7/1999; Blood 6/8/1999; Miller 6/8/1999)

Giuliani’s emergency command center.Giuliani’s emergency command center. [Source: CNN]New York City Mayor Rudolph Giuliani opens a $13 million emergency command center on the 23rd floor of World Trade Center Building 7. (MacGowan 9/12/2001) The center is intended to coordinate responses to various emergencies, including natural disasters like hurricanes or floods, and terrorist attacks. The 50,000 square foot center has reinforced, bulletproof, and bomb-resistant walls, its own air supply and water tank, beds, showers to accommodate 30 people, and three backup generators. It also has rooms full of video monitors from where the mayor can oversee police and fire department responses. It is to be staffed around the clock and is intended as a meeting place for city leaders in the event of an act of terrorism. (CNN 6/7/1999; Bone 9/12/2001; Glanz and Lipton 2004, pp. 233) The center is ridiculed as “Rudy’s bunker.” (Pooley 12/22/2001) Author Philip Shenon will later comment that it “seemed the supreme example of how Giuliani’s ego and arrogance knew no bounds after four years in office,” and: “WABC Radio mocked Giuliani with a name-that-bunker contest for its listeners. Among the most popular entries: ‘Rudy’s Nuclear Winter Palace’ and ‘The Nut Shell.’” It is criticized because of the cost and because of the location, next to the WTC towers, one of the city’s top terrorist targets. In addition, the high floor it is on means it is vulnerable to power, water, and elevator outages. (Shenon 2008, pp. 346-347) Most controversial is the 6,000-gallon fuel tank. In 1998 and 1999, Fire Department officials warn that the fuel tank violates city fire codes and poses a hazard. According to one Fire Department memorandum, if the tank were to catch fire it could produce “disaster.” Building 7 will be destroyed late in the day on 9/11; some suspect this tank helps explains why. (Glanz and Lipton 12/20/2001)

An anti-terrorist training session for the millennium celebration is held at the World Trade Center in New York. There are fears around this time that Osama bin Laden may want to launch attacks on the millennium, including within the US (see December 8, 1999). Representatives of 40 law enforcement and military agencies attend the meeting, which is chaired by counterterrorism “tsar” Richard Clarke. During two hours of brainstorming, no one envisages terrorists flying passenger planes into skyscrapers. New York City Deputy Mayor Rudy Washington is at the session, and will utilize what he learns on 9/11, so as to develop an emergency strategy in response to the attacks (see After 9:59 a.m. September 11, 2001). (Crouch 5/20/2004)

A training exercise is held in New York based around the scenario of a biological warfare agent being released, presumably by terrorists, at a sporting event. During the tabletop exercise, which is attended by top city officials, the police commissioner decides he wants to shut down Manhattan in response to the simulated crisis. Although other exercise participants are skeptical about his decision, they discuss how the shutdown could be achieved. Their discussion leads to an informal understanding between them of how authorities could stop traffic on the city’s bridges and through the city’s tunnels if it was ever necessary to do so. The plan they come up with is that, initially, all traffic would be one-way out of the city and then, subsequently, routes would be closed. This plan will actually be implemented on September 11, 2001, in response to the attacks on the World Trade Center that day. (Jenkins and Edwards-Winslow 9/2003, pp. 29 pdf file) Today’s exercise is presumably conducted by Mayor Rudy Giuliani’s Office of Emergency Management, which was created in 1996 with the purpose of, among other things, improving New York’s response to major incidents, including terrorist attacks (see 1996). (9/11 Commission 7/24/2004, pp. 283)

Mayor Rudy Giuliani updates a directive that is intended to eliminate conflict between agencies when they respond to an emergency, such as a terrorist attack, in New York. (City of New York 7/2001; 9/11 Commission 7/24/2004, pp. 284-285) Since at least the late 1970s, New York’s mayors have recognized that the tense relations between the New York Police Department (NYPD) and the New York Fire Department (FDNY) are a potentially serious problem, and have tried, unsuccessfully, to rectify the situation. (Buntin 9/2005) In a new attempt to resolve the problem, Giuliani updates a directive titled “Direction and Control of Emergencies in the City of New York.” This document states that its purpose is to eliminate “potential conflict among responding agencies which may have areas of overlapping expertise and responsibility.”
Specified Agency Would Be the 'Incident Commander' for an Emergency - To achieve this, the directive designates which agency would serve as the “incident commander” for different types of emergencies. The incident commander would be “responsible for the management of the city’s response to the emergency.” Meanwhile, the Office of Emergency Management (OEM), which Giuliani created in 1996 (see 1996), would “coordinate the participation of all city agencies in resolving the event,” and “assist the incident commander in his/her efforts in the development and implementation of the strategy for resolving the event.”
Fire or Police Department Would Be in Command for a Terrorist Attack - The document states that in the event of an “air crash” or a “structural collapse,” the FDNY would be the incident commander. In the event of a terrorist attack, the incident commander would be either the NYPD or the FDNY, depending on the type of terrorist attack that occurs (for example, whether it is an attack involving weapons of mass destruction or one in which just conventional weapons are used). However, the directive notes, the nature of terrorist attacks “is such that the incident command will shift as the event evolves.” Therefore, it continues, “Any conflicts regarding the issue of command at these incidents will be resolved by OEM.” (City of New York 7/2001; 9/11 Commission 7/24/2004, pp. 284-285)
Directive Is Followed 'to Some Degree' on September 11 - The directive will be followed with limited success when the terrorist attacks occur on September 11. “To some degree, the mayor’s directive for incident command was followed on 9/11,” the 9/11 Commission Report will state. The report will continue, “It was clear that the lead response agency was the FDNY and that the other responding local, federal, bistate, and state agencies acted in a supporting role.” The report will note, however, that “the response operations lacked the kind of integrated communications and unified command contemplated in the directive.” “These problems existed both within and among individual responding agencies,” it will add. (9/11 Commission 7/24/2004, pp. 319)

The ransom for a wealthy Indian shoe manufacturer kidnapped in Calcutta, India, two weeks earlier is paid to an Indian gangster named Aftab Ansari. Ansari is based in Dubai, United Arab Emirates, and has ties to the Pakistani ISI and Saeed Sheikh. Ansari gives some of the about $830,000 in ransom money to Saeed, who sends about $100,000 of it to future 9/11 hijacker Mohamed Atta. (Watson 1/23/2002; Popham 1/24/2002) The Times of India will later report that Lieutenant General Mahmood Ahmed, the director of the ISI, instructed Saeed to transfer the $100,000 into Atta’s bank account. This is according to “senior government sources,” who will claim that the FBI has privately confirmed the story. (Joshi 10/9/2001) According to some accounts, the money is moved through a charity, the Al Rashid Trust. Some of the money is also channelled to the Taliban, as well as Pakistani and Kashmiri militant groups. (NewsInsight 1/4/2002; Press Trust of India 4/3/2002) The money is apparently paid into two of Atta’s accounts in Florida (see Summer 2001 and before). The Al Rashid Trust will be one of the first al-Qaeda funding vehicles to have its assets frozen after 9/11 (see September 24, 2001). A series of recovered e-mails will show the money is sent just after August 11. This appears to be one of a series of Indian kidnappings this gang carries out in 2001. (Mitra, Chakravarty, and Ghosh 2/14/2002; Srivastava 2/14/2002) Saeed provides training and weapons to the kidnappers in return for a percentage of the profits. (Swami 2/2/2002; India Today 2/25/2002) This account will frequently be mentioned in the Indian press, but will appear in the US media as well. For instance, veteran Associated Press reporter Kathy Gannon will write, “Western intelligence sources believe Saeed sent $100,000 to Mohamed Atta, the suspected ringleader of the Sept. 11 terrorist hijackings,” although they apparently think the hawala system was used for this. (Gannon 2/9/2002) Some evidence suggests Saeed may also have sent Atta a similar amount in 2000 (see (July-August 2000) and Summer 2000).

9/11 hijacker Mohamed Atta receives $100,000 from accounts in Pakistan. The money is transferred to two of his accounts in Florida. (Fox News 10/2/2001; Margasak 10/2/2001; US Congress 10/3/2001; CNN 10/6/2001; Ressa 10/8/2001) This will later be reported in various media. For example, ABC News will say that federal authorities track “more than $100,000 from banks in Pakistan to two banks in Florida to accounts held by suspected hijack ringleader Mohamed Atta.” (ABC News 9/30/2001) Law enforcement sources will tell CNN, “[T]he wire transfers from Pakistan were sent to Atta through two banks in Florida.” (CNN 10/1/2001) One of the hijackers’ financiers, the Pakistan-based Omar Saeed Sheikh, is said to wire Atta around $100,000 in August (see Early August 2001). The transfers from Pakistan will be disclosed a few weeks after 9/11 but will then fade from view (see September 30-October 7, 2001), until 2003 when John S. Pistole, deputy assistant director of the FBI’s Counterterrorism Division, tells the Senate Committee on Governmental Affairs that the FBI has traced the origin of funding for 9/11 back to accounts in Pakistan (see July 31, 2003). However, in 2004 the 9/11 Commission will fail to mention any funding coming directly from Pakistan (see Late-September 2001-August 2004).

The fire alarm system in World Trade Center Building 7 is placed on “test condition,” which causes any alarms to be ignored, every morning in the seven days preceding September 11. (National Institute of Standards and Technology 6/2004, pp. 94; National Institute of Standards and Technology 9/2005, pp. 67; National Institute of Standards and Technology 11/2008, pp. 69) WTC 7 is a 47-story office building located 370 feet north of the North Tower. (National Institute of Standards and Technology 8/21/2008; National Institute of Standards and Technology 11/2008, pp. 2) Its alarm system is placed on test condition “every morning at about the same time” in the seven days before September 11, according to a report by the National Institute of Standards and Technology. Since it will be in test condition on September 11 for a period of eight hours, starting at 6:47 a.m. (see 6:47 a.m.-2:47 p.m. September 11, 2001), the system is presumably put on test condition at a similar time and also for eight hours in the seven days before then. At the end of the eight-hour period, the alarm system automatically returns to normal monitoring.
Alarms Are Ignored During Testing - Test condition is usually requested when maintenance or testing is being carried out on the alarm system. While the system is in this mode, any alarms that are received are considered to be the result of the maintenance or testing and are therefore ignored. Furthermore, while the system is in test condition, any alarm signals do not appear on the operator’s display. However, records of the alarm are still recorded in the system’s history file. (National Institute of Standards and Technology 9/2005, pp. 66; National Institute of Standards and Technology 11/2008, pp. 68-69)
Alarm System Is Monitored Away from the WTC - The alarm system in WTC 7 records information at just one location within the building: the fire command station in the third-floor lobby. It is monitored at a location away from the WTC site by AFA Protective Systems, a New York-based company that designs, installs, and services fire alarm systems. (National Institute of Standards and Technology 6/2004, pp. 93; National Institute of Standards and Technology 4/5/2005 pdf file; US Immigration and Customs Enforcement 8/4/2017) AFA Protective Systems usually places the alarm system in WTC 7 on test condition in response to a request from the building manager. (National Institute of Standards and Technology 11/2008, pp. 69) It is unclear who the building manager is, although Mike Catalano, chief engineer for Salomon Smith Barney at WTC 7, will later say the building manager is a man called Ed Campbell. (International Union of Operating Engineers 2003, pp. 27; 9/11 Commission 1/16/2004 pdf file) Records indicate that the alarm system in WTC 7 is often placed on test condition. (National Institute of Standards and Technology 11/2008, pp. 69)

Douglas Karpiloff.Douglas Karpiloff. [Source: Port Authority of New York and New Jersey]A command center for the Port Authority of New York and New Jersey, located in the North Tower of the World Trade Center, is upgraded to make it more secure, and the improvements will reportedly save the lives of people in the command center when the nearby South Tower collapses on September 11. (Taylor and Gardiner 9/12/2001; Guarnera 1/2002; Nash 1/23/2002) The Port Authority’s Security Command Center (SCC) is on the 22nd floor of the North Tower. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 294) Newsday will report, on the day after 9/11, that officials had “recently” increased security at the WTC “by installing bulletproof windows and fireproof doors in the 22nd-floor computer command center.” (Taylor and Gardiner 9/12/2001) According to George Tabeek, the Port Authority’s security manager for the WTC, by September 11, the WTC in fact has “bulletproof window glass in most areas.” (Nugent 6/2008) The installation of the bulletproof windows—and presumably, also, the fireproof doors—in the SCC is made at the request of Douglas Karpiloff, the Port Authority’s director of security and life safety for the WTC. (Nash 1/23/2002)
Upgrades Intended to Protect against 'Aerial Attacks' - According to Hermina Jones, a security guard at the WTC, the upgrades to the SCC are intended “to secure the towers against aerial attacks.” (Taylor and Gardiner 9/12/2001) Tabeek will later recall, “We had planned for the possibility of a small airplane—a corporate jet, maybe—crashing into one of the [WTC] buildings by accident,” although it is unclear if this comment is made in reference to the installation of bulletproof windows at the WTC. (Nugent 6/2008)
Security Improvements Save Lives on September 11 - Some people will credit the upgrades to the SCC with saving their lives on September 11. Tabeek will be in the SCC that day when the first of the Twin Towers—the South Tower—collapses (see 9:59 a.m. September 11, 2001). When that happens, according to Tabeek, the “impact of the explosion peeled off the outer skin of [the North Tower], shattering the thick double-paned windows [of the SCC] in the process.” Tabeek will say, however, that the “inner layer of laminated bulletproof glass put in months earlier… withstood the blast and undoubtedly saved his life and those of the others with him.” Victor Guarnera, the chief technical adviser and manager of security systems for the World Trade Department, who is also in the SCC at that time, will describe what happens when the collapse occurs, saying, “The outer windows [of the SCC] exploded, either from impact [of debris from the South Tower] or differential pressure, but the inner window wall of high-tempered bomb and bullet-resistant glass we had installed a few months before held fast.” Guarnera will comment that the bulletproof windows “were responsible for our survival up to that point.” (Guarnera 1/2002; Nash 1/23/2002)

The fire alarm system in World Trade Center Building 7 is placed on “test condition,” which causes any alarms to be ignored, for a period of eight hours. At 6:47 a.m., the system is placed in a “TEST: ALL” condition. This usually happens when maintenance or other testing is being performed on it. While the system is in this condition, any alarms that are received are considered to be the result of the maintenance or testing and are ignored. Additionally, any alarm signals do not appear on the operator’s display. However, records of the alarm are recorded in the system’s history file. The alarm system automatically returns to normal monitoring after eight hours, which means it does so at 2:47 p.m. (National Institute of Standards & Technology 6/2004, pp. 28, 94) However, no alarm signals will be received after that time, even though WTC 7 subsequently suffers some large fires (see 4:10 p.m. September 11, 2001). A report by the National Institute of Standards and Technology will later suggest the reason for this could be that “either the building alarm system was not functioning after about 2:47 p.m.… or… the offsite monitoring system or its link to WTC 7 was incapacitated in some way.” A fire is detected by the system, though, at one time while it is in test condition. This occurs at 10:00 a.m., just after the South Tower collapses (see 10:00 a.m. September 11, 2001). (National Institute of Standards and Technology 11/2008, pp. 69-70) The alarm system is placed on test condition today at the request of a person with the surname Williams. Further details of this person are unknown. The system has been placed on test condition every morning for the last seven days (see September 4-10, 2001). (National Institute of Standards & Technology 6/2004, pp. 94)

New York City’s Emergency Operations Center (EOC) set up at Pier 92 on the Hudson River following the 9/11 attacks.New York City’s Emergency Operations Center (EOC) set up at Pier 92 on the Hudson River following the 9/11 attacks. [Source: ArcNews]At Pier 92 on the Hudson River, preparations are underway for a training exercise due to take place there the following day. The exercise, called Tripod, which had been scheduled months earlier, is intended to test how well New York’s Office of Emergency Management (OEM) can administer treatment in response to a biological-terrorism attack (see September 12, 2001). (Griscom 10/15/2001; Giuliani 2002, pp. 355) Pier 92, located just over four miles north-northwest of the World Trade Center, has been set up as a model distribution station where the simulated victims will be treated. (Jenkins and Edwards-Winslow 9/2003, pp. 15 and 20 pdf file) Ken Longert, the owner of a theatrical lighting business, arrives at the pier at 7:00 a.m. to help get the place ready for the exercise. He will later recall, “Two or three hundred cadets [presumably with the New York police and fire departments] were there, learning the proper procedures in case some kind of disaster hit New York.” Longert will recall that, seconds after the second WTC tower is hit at 9:03, “all the people from OEM disappeared” from the pier. (DiMarco 2007, pp. 457-458) After OEM’s original command center is destroyed when WTC 7—where it is located—collapses (see (5:20 p.m.) September 11, 2001), Pier 92 will be selected as the location for the substitute command center. (9/11 Commission 5/19/2004) Members of OEM staff have also arrived early this morning at the OEM offices in WTC 7 to prepare for the exercise (see (Shortly After 8:46 a.m.) September 11, 2001). (Jenkins and Edwards-Winslow 9/2003, pp. 15 pdf file)

A Sikorsky S-76A helicopter flying over New York.
A Sikorsky S-76A helicopter flying over New York. [Source: Sikorsky]A helicopter is tracked on radar apparently crashing into the World Trade Center, according to a report later given by a New York air traffic controller over an FAA teleconference.
Helicopter Is 'the Only Target that We Saw ... to Fly into the Trade Center' - At around 10:15 a.m., Tom White, an operations manager at the FAA’s New York Terminal Radar Approach Control (TRACON), will tell those on the FAA teleconference that his facility tracked a Sikorsky helicopter that had taken off from the airport in Poughkeepsie, New York, and this helicopter appeared to fly into the WTC at 8:27 a.m. (see (10:15 a.m.) September 11, 2001). White will add that, after replaying radar information, it is concluded that the helicopter is “the only target that we saw in the vicinity of the Trade Center at 12:27 [Zulu time, or 8:27 a.m. Eastern time] to fly into the Trade Center.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 5/21/2004) (However, the first crash at the WTC will not occur until 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7) ) The “Poughkeepsie airport” the helicopter took off from is presumably Dutchess County Airport. Sikorsky reportedly bases a fleet of its S-76 helicopters at Dutchess County Airport, “dispatching them to the New York metro areas as needed.” (Venable 5/2000; Wagstaff 8/1/2003) Poughkeepsie is about 70 miles north of New York City. (Sherman 2/3/2008)
Helicopter 'Consistent with the Speed' of What Hits WTC - White will say the helicopter’s tail number is N7601S, that it departed the Poughkeepsie airport at 8:03 a.m., and that it then headed south at a speed of around 160 knots, or 184 miles per hour. He will add: “The tower [presumably the air traffic control tower at the Poughkeepsie airport] says the only thing they had southbound at that time was a Sikorsky helicopter, which is consistent with the speed that we followed it down.… They’re saying they replayed the radar and it’s consistent with the speed of what went into the [WTC] tower.” (Federal Aviation Administration 9/11/2001) (However, an analysis by the US government will later estimate that Flight 11 hits the WTC at 494 miles per hour, or 429 knots, which is significantly faster than the helicopter was flying. (Lipton and Glanz 2/23/2002) )
Mistaken Information Later Corrected - It will apparently take until early afternoon for the suspicions about the Sikorsky helicopter hitting the WTC to be dismissed. An FAA chronology of this day’s events will state that at 1:00 p.m., the “Sikorsky helicopter” is “now believed not to have hit the WTC.” (Federal Aviation Administration 1/2/2002) Another FAA chronology will state that at 1:04 p.m., it is reported that the Sikorsky helicopter “landed 20 minutes early, normal GE run at 12:28Z [i.e. 8:28 a.m. Eastern time] to WTC.” (It is unclear what is meant by “normal GE run.”) (Federal Aviation Administration 9/11/2001)

Steve Bongardt.Steve Bongardt. [Source: Government Matters]Steve Bongardt, an agent at an FBI office in Manhattan, reads a report on his computer about Osama bin Laden reopening his underground facility in Afghanistan and he will subsequently determine that this incident is related to the attacks on the World Trade Center. (Wright 2006, pp. 356-357; Graff 2011, pp. 309-310) Bongardt is a member of the FBI’s I-49 squad. (Wright 2006, pp. 377) The squad is focused on bin Laden and al-Qaeda’s central command. It is based in an office on the eighth floor at 290 Broadway, across the street from the FBI’s New York field office at 26 Federal Plaza. (Graff 2011, pp. 205-206) Bongardt is one of the first people to arrive at the office this morning, coming into work sometime before 8:30 a.m. He turns on his computer and reads some of the day’s intelligence. He is puzzled by one particular piece of information he sees. “A report had Osama bin Laden reopening his large underground facility at Tora Bora in Afghanistan and sprucing it up,” journalist and author Garrett Graff will write. According to author Lawrence Wright, the report states that “the al-Qaeda camps in Tora Bora [are] being revitalized.” (Wright 2006, pp. 356-357; Graff 2011, pp. 309) The Tora Bora encampment is a “natural and manmade fortress of caves and bunkers,” according to the Chicago Tribune. It comprises a “series of rooms and tunnels,” and can “comfortably house 1,000 people,” according to an Afghan who visited the complex a few months ago. (Diamond and Lev 11/28/2001) “That can’t be good,” Bongardt thinks upon reading the report. “What the hell is [bin Laden] doing?” he wonders. Bongardt will feel the room shake when Flight 11 crashes into the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and promptly head out of the building. He will realize what has happened when he sees that both of the Twin Towers are on fire and notices a massive jetliner engine lying on the street. He will then connect what is occurring to the report he read on his computer. He will understand that “this was the work of bin Laden,” according to Wright. “This is al-Qaeda. This is why they’re polishing up Tora Bora,” he will think. (Wright 2006, pp. 357-359; Graff 2011, pp. 309-310)

Colin Scoggins, the military liaison at the FAA’s Boston Center, calls the FAA’s New York Center but is quickly cut off when the air traffic controller who answers says the center is busy dealing with a hijacking. According to author Lynn Spencer, Scoggins “calls New York Center to notify them that American 11 appears to be descending toward New York, most likely to land at JFK” International Airport. But the controller who takes the call snaps at him: “We’re too busy to talk. We’re working a hijack,” and then hangs up. According to Spencer, the New York Center controller is referring to Flight 175, but “Scoggins just figures that he’s talking about American 11. He has no idea that a second airliner is in crisis.” However, the timing of this call is unclear. If it is made while Flight 11 is descending toward New York, this would mean it occurs in the minutes before 8:46, when Flight 11 crashes (see 8:46 a.m. September 11, 2001). But in Spencer’s account, the call is made just after New York Center controller Dave Bottiglia notices that Flight 175’s transponder code has changed and he calls out to another controller, “I can’t get a hold of UAL 175 at all right now and I don’t know where he went to” (see 8:51 a.m.-8:53 a.m. September 11, 2001). (Spencer 2008, pp. 48-49) The transcript of radio communications between the New York Center and Flight 175 shows that this would mean Scoggins’s call occurs around 8:53 a.m.-8:54 a.m., about seven minutes after Flight 11 crashes. (New York Times 10/16/2001)

Employees at the American Airlines Southeastern Reservations Office in Cary, North Carolina, lose communication with Betty Ong, a flight attendant on the hijacked Flight 11. (American Airlines 9/11/2001, pp. 20-22; 9/11 Commission 7/24/2004, pp. 5-6)
Ong Stops Responding to Questions - For about the last 25 minutes, Ong has been on the phone with a number of employees at the reservations office, and has been providing them with information about the trouble on her plane. (9/11 Commission 8/26/2004, pp. 8) But now she stops responding to their communications. Nydia Gonzalez, one of the reservations office employees, continues questioning Ong. She says: “What’s going on Betty? Betty, talk to me. Betty, are you there? Betty?” Receiving no response, she asks her colleague Winston Sadler, who is also participating in the call, “Do you think we lost her?” On another phone line, Gonzalez immediately notifies a manager at the American Airlines System Operations Control center in Texas that contact with Ong has been lost (see 8:44 a.m. September 11, 2001). (American Airlines 9/11/2001, pp. 20-22; 9/11 Commission 8/26/2004, pp. 14)
Ong Asked Airline Employees to 'Pray for Us' - Toward the end of the call, Ong said repeatedly to the reservations office employees: “Pray for us. Pray for us.” (ABC News 7/18/2002) Gonzalez will say in an interview later today that Ong’s final words, before the call ends, were, “Oh my God, the flight, it’s going down, it’s going down.” (Federal Bureau of Investigation 9/11/2001, pp. 1-8) But in a subsequent interview, she will say that before the call ends, Ong “started to cry” and then her final words were, “Oh God, oh God, what is going on?” (Federal Bureau of Investigation 9/12/2001, pp. 69-71) The reservations office employees have lost communication with Ong by 8:44 a.m., according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 6) But according to a summary of phone calls from the hijacked flights presented at the 2006 trial of Zacarias Moussaoui, the call from Ong began at 8:18 a.m. and 47 seconds, and lasts exactly 27 minutes, meaning it ends at 8:45 a.m. and 47 seconds. (US District Court for the Eastern District of Virginia, Alexandria Division 7/31/2006) Flight 11 will crash into the World Trade Center less than a minute after that, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7)

Amy Sweeney, a flight attendant on Flight 11, gives updates over the phone to Michael Woodward, an American Airlines flight services manager at Logan International Airport in Boston, as her plane approaches the World Trade Center, and then, after she reports that the plane is flying “very, very low,” the line goes dead. (Federal Bureau of Investigation 9/13/2001, pp. 1-2; 9/11 Commission 7/24/2004, pp. 6-7) Sweeney has been on the phone with the American Airlines flight services office at Logan Airport since 8:32 a.m., describing to Woodward the trouble on her plane (see (8:32 a.m.-8:44 a.m.) September 11, 2001). (9/11 Commission 8/26/2004, pp. 11)
Sweeney Says Plane Is 'in a Rapid Descent' - She now tells Woodward: “Something is wrong. We are in a rapid descent.” She says her plane is flying “all over the place.” (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) Around this time, Woodward tells Nancy Wyatt, another employee in the flight services office, that Sweeney has “started screaming that there’s something wrong with the airplane.” He adds: “In other words… [the original pilot is] not flying the airplane. They’re not flying the airplane.” (American Airlines 9/11/2001, pp. 34-41)
Sweeney Says Plane Is Flying 'Very Low' - Woodward asks Sweeney to look out of the window to see if she can determine where her plane is. (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) In an interview with the FBI a couple of days later, Woodward will say that Sweeney tells him: “I see water. I see buildings. We’re very, very low. Oh my God.” (Federal Bureau of Investigation 9/13/2001, pp. 1-2) In 2004, he will give a slightly different account, telling the 9/11 Commission that Sweeney says: “We are flying low. We are flying very, very low. We are flying way too low.” Seconds later she says, “Oh my God, we are way too low.” (9/11 Commission 1/25/2004 pdf file; 9/11 Commission 8/26/2004, pp. 14) Sweeney says “Oh my God” after taking “a very slow, deep breath,” Woodward will tell ABC News. She says these final words “[v]ery slowly, very calmly, very quietly. It wasn’t in panic,” Woodward will say.
Call Suddenly Cut Off - Woodward then hears what he will describe as “very, very loud static on the other end” of the line. (ABC News 7/18/2002) After a short time, the line goes dead. (Federal Bureau of Investigation 9/13/2001, pp. 1-2) Woodward looks up from the phone and tells everyone else in the office that the line has died. (Federal Bureau of Investigation 9/13/2001, pp. 3-4) Wyatt is on the phone with Ray Howland, an employee at the American Airlines System Operations Control center in Fort Worth, Texas, and has been passing on to him the information that Sweeney was providing to Woodward (see 8:40 a.m.-8:48 a.m. September 11, 2001). She now informs Howland, “Okay, we just lost connection” with Sweeney. (American Airlines 9/11/2001, pp. 34-41; et al. 9/7/2011, pp. 14 pdf file)
Flight Services Office Personnel Learn of Crash at WTC - Shortly after Sweeney’s call is cut off, Woodward’s operational manager, Craig Kopetz, will enter the flight services office and say that a plane has just crashed into the WTC. Woodward will not initially connect this news with the crisis he has been dealing with. (Federal Bureau of Investigation 9/13/2001, pp. 1-2; ABC News 7/18/2002) Those in the flight services office will then go to their command center. “Approximately 15 minutes later,” according to Elizabeth Williams, one of Woodward’s colleagues, the group will realize that “Flight 11 was the same flight which crashed into the WTC.” (Federal Bureau of Investigation 9/13/2001, pp. 3-4) The call between Sweeney and Woodward lasts “approximately 12 minutes” and ends at around 8:44 a.m., according to the 9/11 Commission. (9/11 Commission 2004, pp. 4; 9/11 Commission 8/26/2004, pp. 11, 14) But according to a summary of phone calls from the hijacked flights presented at the 2006 trial of Zacarias Moussaoui, the call began at 8:32 a.m. and 39 seconds, and lasts 13 minutes and 13 seconds, meaning it ends at 8:45 a.m. and 52 seconds. (US District Court for the Eastern District of Virginia, Alexandria Division 7/31/2006) Flight 11 crashes into the WTC less than a minute later, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7)

An air traffic controller at the FAA’s Boston Center suggests that Flight 11 is going to crash into the World Trade Center. (The Learning Channel 8/20/2006) Flight 11 is heading southbound toward New York, descending at about 3,200 feet per minute. (National Transportation Safety Board 2/19/2002 pdf file) John Hartling, a controller at the Boston Center who has been monitoring it (see (8:34 a.m.) September 11, 2001), will later recall, “One of my fellow controllers on the other side of the room, I heard him say, ‘That airplane’s gonna hit the World Trade Center.’” (The Learning Channel 8/20/2006) Flight 11 will crash into the WTC at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (National Transportation Safety Board 2/19/2002 pdf file)

The hole caused by the Flight 11 crash.The hole caused by the Flight 11 crash. [Source: Reuters]Flight 11 slams into the WTC North Tower (Building 1). Hijackers Mohamed Atta Waleed Alshehri, Wail Alshehri, Abdulaziz Alomari, and Satam Al Suqami presumably are killed instantly, and many more in the tower will die over the next few hours. Seismic records pinpoint the crash at 26 seconds after 8:46 a.m. (CNN 9/12/2001; New York Times 9/12/2001; North American Aerospace Defense Command 9/18/2001; Cauchon 12/20/2001; Federal Emergency Management Agency 5/1/2002, pp. 1-10; Dwyer et al. 5/26/2002; Levin, Adams, and Morrison 8/12/2002; Associated Press 8/21/2002; Adcock 9/10/2002) The NIST report states the crash time to be 8:46:30. (National Institute of Standards and Technology 9/2005, pp. 19) The 9/11 Commission Report states the crash time to be 8:46:40. (9/11 Commission 7/24/2004, pp. 7) Investigators believe the plane still has about 10,000 gallons of fuel (see 8:57 a.m. September 11, 2001). (Dwyer et al. 5/26/2002) The plane strikes the 93rd through 99th floors in the 110-story building. No one above the crash line survives; approximately 1,360 people die. Below the crash line, approximately 72 die and more than 4,000 survive. Both towers are slightly less than half full at the time of the attack, with between 5,000 to 7,000 people in each tower. This number is lower than expected. Many office workers have not yet shown up to work, and tourists to the observation deck opening at 9:30 A.M. have yet to arrive. (Cauchon 12/20/2001; National Institute of Standards and Technology 9/2005, pp. 20-22) The impact severs some columns on the north side of the North Tower. Each tower is designed as a “tube-in-tube” structure and the steel columns which support its weight are arranged around the perimeter and in the core. The plane, which weighs 283,600 lb and is traveling at an estimated speed of around 430 mph (see October 2002-October 2005), severs 35 of the building’s 236 perimeter columns and damages another two. The damage to the South Tower’s perimeter will be similar (see 9:03 a.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 5-9, 20, 22) The perimeter columns bear about half of the tower’s weight, so this damage reduces its ability to bear gravity loads by about 7.5 percent. (National Institute of Standards and Technology 9/2005, pp. 6) The actual damage to the 47 core columns is not known, as there are no photographs or videos of it, but there will be much speculation about this after 9/11. It will be suggested that some parts of the aircraft may have damaged the core even after crashing through the exterior wall. According to the National Institute of Standards and Technology (NIST): “Moving at 500 mph, an engine broke any exterior column it hit. If the engine missed the floor slab, the majority of the engine core remained intact and had enough residual momentum to sever a core column upon direct impact.” (National Institute of Standards and Technology 9/2005, pp. 107) According to NIST’s base case computer model, three of the core columns are severed and another ten suffer some damage. (National Institute of Standards & Technology 9/2005, pp. 189 pdf file) If this is accurate, it means that the impact damage to the core reduces the Tower’s strength by another approximately 7.5 percent, meaning that the building loses about 15 percent of its strength in total. This damage will be cited after 9/11 by NIST and others researchers as an event contributing to the building’s collapse (see October 23, 2002 and October 19, 2004). In addition, some of the fireproofing on the steel columns and trusses may be dislodged. The original fireproofing on the fire floors was mostly Blazeshield DC/F, but some of the fireproofing on the flooring has recently been upgraded to Blazeshield II, which is about 20 percent denser and 20 percent more adhesive. (National Institute of Standards & Technology 9/2005, pp. xxxvi, 83 pdf file) Photographs and videos of the towers will not show the state of fireproofing inside the buildings, but NIST will estimate the damage to it using a computer model. Its severe case model (see (October 2002-October 2005)) will predict that 43 of the 47 core columns are stripped of their fireproofing on one or more floors and that fireproofing is stripped from trusses covering 60,000 ft2 of floor area, the equivalent of about one and a half floors. NIST will say that the loss of fireproofing is a major cause of the collapse (see April 5, 2005), but only performs 15 tests on fireproofing samples (see October 26, 2005). (National Institute of Standards and Technology 9/2005, pp. 23) According to NIST, more fireproofing is stripped from the South Tower (see 9:03 a.m. September 11, 2001).

John Odermatt.John Odermatt. [Source: Queens Gazette]New York City’s Office of Emergency Management (OEM) activates its Emergency Operations Center (EOC) on the 23rd floor of World Trade Center Building 7. The OEM is responsible for managing the city’s response to major incidents, including terrorist attacks. (9/11 Commission 7/24/2004, pp. 283-284, 293) Its personnel arrived at WTC 7, where it has offices, early this morning to prepare for Tripod, a major biological terrorism training exercise scheduled for September 12 (see September 12, 2001). (Jenkins and Edwards-Winslow 9/2003, pp. 15 pdf file)
Staffer Is Told to Open the Operations Center - OEM Commissioner John Odermatt and Richard Bylicki, a police sergeant assigned to the OEM, heard the explosion when Flight 11 crashed into the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). As they look out of the window at the burning North Tower, Odermatt debriefs Bylicki and instructs him to open the EOC for a fully staffed operation. Bylicki therefore sets about activating the operations center. (Bylicki 6/19/2003)
Staffers Call Agencies and Tell Them to Send Their Representatives - EOC personnel start contacting agencies, including the New York Fire and Police Departments and the Department of Health, and instruct them to send their designated representatives to the center. They also call the State Emergency Management Office (SEMO) and the Federal Emergency Management Agency (FEMA), which they ask to send at least five federal urban search and rescue teams. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 293) Meanwhile, Bylicki helps the OEM’s Watch Command handle an “enormous influx” of phone calls, many of which are from senior city officials. (Bylicki 6/19/2003)
Activation Proceeds without Any Problems - EOC personnel initially struggle to make sense of what has happened at the Twin Towers. (Wachtendorf 2004, pp. 77) However, the activation apparently proceeds without any problems. Firefighter Timothy Brown, a supervisor at the OEM, is instructed by Calvin Drayton, a deputy director with the OEM, to go up to the 23rd floor of WTC 7 and make sure that personnel are getting the EOC up and running, and the Watch Command is being properly supervised. He goes up to the 23rd floor and first checks the Watch Command. He sees that its supervisor, Mike Lee, has things under control. Then, in the EOC, he sees Michael Berkowitz, a supervisor with the OEM, powering up all the computers and television screens necessary to handle the emergency, and beginning to notify the dozens of agencies that need to send representatives to the center. Berkowitz tells Brown he has the manpower he needs to get the center up and running. “I was very comfortable that OEM was beginning to do what we do in a major emergency,” Brown will later recall. Activating the EOC is something OEM personnel have “drilled for and drilled for and drilled for… and so we were very good at it,” he will comment. (Brown 1/15/2002; Brown 6/30/2002 pdf file; Brown 1/31/2003)
Center Is Designed for Managing a Crisis - The EOC, which opened in 1999 (see June 8, 1999), is a state-of-the-art facility designed to operate as a stand-alone center from which the city government can operate during a crisis. (City of New York 2/18/2001) It is one of the most sophisticated facilities of its type in the world. It includes a communications suite, a conference room, a press briefing room, and a large number of staff offices, and has numerous computer-equipped workstations. (Kendra and Wachtendorf 3/2003 pdf file) It has enough seating for 68 agencies to operate during an emergency. (City of New York 2/18/2001) However, it will be evacuated at 9:30 a.m. due to reports of further unaccounted-for planes, according to the 9/11 Commission Report (see (9:30 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 305) Other accounts will indicate that it may be evacuated at an earlier time, possibly even before the second crash at the WTC occurs (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001 and (Shortly Before 9:03 a.m.) September 11, 2001).

Richard SheirerRichard Sheirer [Source: Publicity photo]Richard Sheirer is in a meeting at New York City Hall when he is informed by telephone of the first plane hitting the World Trade Center. Sheirer is the director of the Mayor’s Office of Emergency Management (OEM), which was set up in 1996 to coordinate the city’s overall response to major incidents, including terrorism (see 1996). It has an emergency command center on the 23rd floor of WTC 7, specially intended for coordinating the response to catastrophes such as terrorist attacks (see June 8, 1999). Yet instead of going to this, Sheirer heads to the North Tower, and arrives at the fire command post set up in its lobby before the second crash at 9:03 a.m. (Griscom 10/15/2001; 9/11 Commission 5/18/2004 pdf file) John Odermatt, Sheirer’s top deputy, also goes to the North Tower and says that, after the first plane hit, he leaves only two staffers at the command center. John Farmer, who heads the 9/11 Commission unit that assesses the city response to the attacks, will find it “strange that Sheirer, four OEM deputies, and a field responder went straight to the North Tower… rather than to the nearby emergency command center.” Journalists Wayne Barrett and Dan Collins will conclude, “[T]he command center was out of business from the outset.” (Barrett and Collins 2006, pp. 31 and 34) Sheirer stays at the North Tower lobby until soon after 9:30 a.m., when Mayor Giuliani requests he joins him at the temporary command post at 75 Barclay Street (see (9:50 a.m.-10:10 a.m.) September 11, 2001). (9/11 Commission 5/18/2004 pdf file) John Farmer will later complain, “We [the 9/11 Commission] tried to get a sense of what Sheirer was really doing. We tried to figure it out from the videos. We couldn’t tell. Everybody from OEM was with him, virtually the whole chain of command. Some of them should have been at the command center.” Fire Captain Kevin Culley, who works as a field responder at OEM, is later asked why most of the OEM’s top brass were with him at the scene of the incident. He says, “I don’t know what they were doing. It was Sheirer’s decision to go there on his own. The command center would normally be the focus of a major event and that would be where I would expect the director to be.” When the 9/11 Commission later investigates OEM’s shortcomings on 9/11, “No rationale for Sheirer’s prolonged lobby stay, no information conveyed to commanders, and no steps to coordinate the response” will be discovered. (Barrett and Collins 2006, pp. 31-32 and 34)

Alan DeVona.Alan DeVona. [Source: Atlas Shrugs]An officer with the Port Authority Police Department (PAPD) calls for the evacuation of the upper floors of the North Tower of the World Trade Center over a PAPD radio channel. Transcripts of PAPD radio transmissions will show that at 8:49 a.m., three minutes after Flight 11 crashed into the North Tower (see 8:46 a.m. September 11, 2001), the PAPD officer talks to the PAPD desk, which is in Building 5 of the WTC, just northeast of the North Tower. He says: “Start doing the evac, the upper levels. Have the units put on the Scott air packs.” The officer at the PAPD desk then radios all PAPD units and tells them to “bring Scott air packs [to] One World Trade,” i.e. the North Tower. (Port Authority of New York and New Jersey 9/11/2001, pp. 2 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; National Institute of Standards and Technology 9/2005, pp. 195)
Patrol Sergeant Recalls Requesting Evacuation - It is unclear which PAPD officer requests the evacuation at this time. According to some accounts, Alan DeVona, the PAPD patrol sergeant at the WTC, makes the request. (Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; Dwyer and Flynn 2005, pp. 78) DeVona will later recall that he had just walked out from the PAPD desk in WTC 5 when he heard the explosion as Flight 11 hit the North Tower. Along with his colleague, Anthony Basic, he radioed the PAPD desk and reported that the top floors of the North Tower were on fire, due to a “possible aircraft collision.” He headed into the North Tower to coordinate with emergency agencies as they arrived there. DeVona will recall that he then “radios to have all WTC police units get Scott air packs and begin evacuation of [the North Tower].” He will subsequently be “approached by numerous PAPD units as they entered the lobby” of the North Tower, and he “dispatches them through the concourse to evacuate the complex.” (Devona 3/28/2002, pp. 24 pdf file)
Police Commander Recalls Requesting Evacuation - However, Captain Anthony Whitaker, the PAPD commanding officer at the WTC, will also say that he calls for the evacuation of the WTC around this time. Whitaker was on duty in the shopping mall beneath the Twin Towers when Flight 11 hit the North Tower. (Dwyer and Flynn 2005, pp. 78) He heard a “strange roar” and saw a “gigantic fireball” coming out of the lobby of the North Tower. He then contacts the PAPD desk in WTC 5. Whitaker will recall, “I had no idea what had just happened, but I knew it was bad.” Therefore, he will say, “I ordered the cop at the desk to begin a full-scale evacuation of the entire complex.” This will mean the evacuation of “both towers and the adjoining buildings.” Whitaker contacts one of his sergeants and then, he will recall, “we started placing Port Authority cops in strategic locations in the shopping mall to direct the evacuation.” Whitaker will say that after 9/11, he is repeatedly asked, “Why did you give that order to evacuate at that particular time?” following the first crash, but before the second plane hit the WTC. His explanation will be: “It just occurred to me that whatever was going on—and I still didn’t know what that was—was beyond my ability as a commanding officer of that facility to do anything about it. So it seemed to me that the only prudent thing to do was start a full-scale evacuation and get everybody out of there.” (Fink and Mathias 2002, pp. 23-24; Murphy 2002, pp. 179-181)
Evacuation Orders Cannot Be Heard by Fire Safety Directors - At 9:00 a.m., Whitaker will call for an evacuation of the entire WTC complex (see 8:59 a.m.-9:02 a.m. September 11, 2001). However, both that instruction and the current one are given over PAPD radio channel W, which cannot be heard by the deputy fire safety directors in the Twin Towers, who are able to make announcements to the buildings’ occupants over the public address systems. (WTC News 8/1995 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 195, 201) An announcement advising workers to evacuate will only go out over the public address system in the South Tower at 9:02 a.m. (see 9:02 a.m. September 11, 2001). And attempts to order workers to evacuate the North Tower are unsuccessful because that building’s public address system was damaged by the plane crash (see (Between 8:47 a.m. and 8:55 a.m.) September 11, 2001). (Prendergast 5/18/2004)
PAPD Investigates All Reports of Fires at WTC - The WTC is a Port Authority property, which means it is patrolled by the PAPD—the Port Authority’s independent police agency. Members of the PAPD respond to “thefts, injuries, fires, all species of crisis large and small, almost always more quickly than the city emergency responders could get there,” according to New York Times reporters Jim Dwyer and Kevin Flynn. “By plan,” Dwyer and Flynn will write, “the PAPD checked out every report of fire” and “its officers were trained in at least rudimentary firefighting.” (Dwyer and Flynn 2005, pp. 78)

An announcement goes out over the public address system in the South Tower of the World Trade Center, telling workers that an incident has occurred in the other WTC tower and their building is safe, and advising them to stay in—or return to—their offices, rather than evacuate. (Moore and Cauchon 9/2/2002; 9/11 Commission 7/24/2004, pp. 287-288) After Flight 11 hit the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001), many people in the South Tower were unaware of what had happened. “Some believed an incident had occurred in their building; others were aware that a major explosion had occurred on the upper floors of the North Tower,” the 9/11 Commission Report will state. As a result, many workers decided to leave the South Tower. (9/11 Commission 7/24/2004, pp. 287) As they do so, an announcement is made over the public address system.
Announcement Says South Tower Is Secure - Brian Clark, an executive with Euro Brokers who also serves as a fire warden and is on the 84th floor of the South Tower, will later describe this announcement. “First, the strobe lights flashed, as they did during their normal fire drills,” he will say. “The alarm system gave a little bit of a whoop, whoop… to alert you to an announcement about to be made. Then the very familiar voice, the one we heard all the time, came over the system.” Clark will recall that the voice says: “Your attention, please, ladies and gentlemen. Building 2 [i.e. the South Tower] is secure. There is no need to evacuate Building 2. If you are in the midst of evacuation, you may use the re-entry doors and the elevators to return to your office. Repeat, Building 2 is secure.” (Clark 4/30/2002; Dwyer and Flynn 2005, pp. 72) The announcement is made two or possibly three times, according to USA Today. (Moore and Cauchon 9/2/2002) Florence Engoran, a credit analyst working in the South Tower, will recall it being made “[o]ver and over and over again.” (DiMarco 2007, pp. 50)
Announcement May Lead to Hundreds of Deaths - Many people in the South Tower remain on their floors after hearing the announcement, while others who were leaving the building turn around and head back upstairs. (9/11 Commission 7/24/2004, pp. 289) USA Today will suggest that the announcement therefore “may have led to the deaths of hundreds of people.” (Moore and Cauchon 9/2/2002) According to the National Institute of Standards and Technology, of those who die in the South Tower, only 11 are below where the plane hits the tower at 9:03 a.m. (see 9:03 a.m. September 11, 2001), and 619 are in or above the point of impact. (National Institute of Standards and Technology 9/2005, pp. 44)
Announcement Goes against Protocol - The announcement is later believed to have been made by Philip Hayes, a deputy fire safety director at the WTC, who is manning the fire command desk in the lobby of the South Tower. Fire safety directors are trained to read scripted announcements from a loose-leaf binder. But, according to the 9/11 Commission Report, the advice given in the announcement, for people to stay in, or return to, their offices, “did not correspond to any existing written protocol.”
Security Manager Decided to Instruct Workers Not to Evacuate - The 9/11 Commission Report will also state, “We do not know the reason for the announcement, as both [Hayes] and the director of fire safety for the WTC complex perished in the South Tower’s collapse.” (Moore and Cauchon 9/2/2002; 9/11 Commission 7/24/2004, pp. 288; Dwyer and Flynn 2005, pp. 26, 72) However, George Tabeek, a security manager with the Port Authority of New York and New Jersey, will admit having made the decision to instruct South Tower workers to return to their offices (see Shortly After 8:46 a.m. September 11, 2001). (Walmsley 9/10/2011) Some security officials in the South Tower instruct workers, in person, to return upstairs, rather than evacuate (see (8:47 a.m.-9:02 a.m.) September 11, 2001). But finally, about a minute before Flight 175 hits the South Tower, an instruction will be broadcast over the public address system informing workers that they can begin an evacuation if conditions warrant it (see 9:02 a.m. September 11, 2001). (Vulliamy 9/16/2001; 9/11 Commission 7/24/2004, pp. 289)

A typical F-15.A typical F-15. [Source: US Air Force]Radar data will show that the two F-15s scrambled from Otis Air National Guard Base in Cape Cod, Massachusetts, are airborne by this time. (Graham 9/15/2001; North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 20) It is now eight minutes since the mission crew commander at NORAD’s Northeast Air Defense Sector (NEADS) ordered that the jets be launched (see 8:45 a.m. September 11, 2001). (Bronner 8/1/2006) It is 40 minutes since air traffic controllers had their last communication with Flight 11 (see 8:13 a.m. September 11, 2001), and 28 minutes since they became certain that the aircraft was hijacked (see (8:25 a.m.) September 11, 2001). Flight 11 crashed into the World Trade Center seven minutes ago (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7, 19 and 459)
Commander Wants Fighters Sent to New York - In Rome, New York, NEADS has just received news of the plane hitting the WTC (see 8:51 a.m. September 11, 2001). Major Kevin Nasypany, the facility’s mission crew commander, is asked what to do with the Otis fighters. He responds: “Send ‘em to New York City still. Continue! Go! This is what I got. Possible news that a 737 just hit the World Trade Center. This is a real-world.… Continue taking the fighters down to the New York City area, JFK [International Airport] area, if you can. Make sure that the FAA clears it—your route all the way through.… Let’s press with this.” (Bronner 8/1/2006) Yet there will be conflicting reports of the fighters’ destination (see (8:53 a.m.-9:05 a.m.) September 11, 2001), with some accounts saying they are directed toward military-controlled airspace off the Long Island coast. (Filson 2003, pp. 56-59; 9/11 Commission 6/17/2004)

An air traffic controller at the FAA’s Boston Center directs the two fighter jets that took off from Otis Air National Guard Base in response to the hijacked Flight 11 toward a new heading, based on instructions he has just received from NORAD’s Northeast Air Defense Sector (NEADS).
NEADS Gave New Heading for Fighters - The Boston Center controller, who is working at the Cape Sector radar position, has just been contacted by someone from NEADS. The caller from NEADS, referring to the two fighters from Otis Air Base, said, “The heading that we gave him on, I guess, is a bad heading.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) (The original flight strip for the fighters gave a destination of New York’s JFK International Airport. (9/11 Commission 9/22/2003 pdf file) ) The caller said the fighters’ target was “now south of JFK,” and added, “Can you direct the Panta flight [i.e. the two Otis fighters] towards that now?” The controller replied: “If I’m talking to him, I don’t know where that target [is]. I don’t even see the target at all.” (Federal Aviation Administration 9/11/2001) The “target,” Flight 11, crashed into the World Trade Center at 8:46 a.m. (see 8:46 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 7) However, the caller explained that NEADS had just talked to Colin Scoggins, the military liaison at the Boston Center, and Scoggins said the target was “south of JFK now.” The caller therefore reiterated, “We want to get [the Otis fighters] headed in that direction.” The controller confirmed, “I’ll do that.”
Controller Passes on New Heading to Pilot - Seconds later, Lieutenant Colonel Timothy Duffy, one of the pilots of the two fighters out of Otis Air Base, checks in with the Boston Center controller. Duffy says, “Boston Center, Panta 45 with you out of 13-5 for 290.” (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) (“Panta 45” is Duffy’s call sign. (Spencer 2008, pp. 113) ) The controller tells Duffy, “Panta 45, roger, fly heading of 260.” Duffy confirms the new heading. The controller then instructs, “Maintain block 290.” Duffy confirms, “Six zero on the heading, climbing to flight level [of] 290.” The controller will then tell Duffy that Flight 11 has crashed into the WTC (see 8:55 a.m. September 11, 2001). (Federal Aviation Administration 9/11/2001)

One of the two fighter pilots who took off in response to the hijacked Flight 11 is told by air traffic control that Flight 11 has crashed into the World Trade Center, and yet both pilots will later claim they are unaware of this crash until after 9:03 a.m., when Flight 175 hits the WTC. (Federal Aviation Administration 9/11/2001; Dennehy 8/21/2002; ABC News 9/11/2002; Nash 10/2/2002; Duffy 10/22/2002; 9/11 Commission 2004) Lieutenant Colonel Timothy Duffy and Major Daniel Nash took off in their F-15s from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), but were unaware that at the same time, Flight 11 was crashing into the WTC (see 8:46 a.m. September 11, 2001). (Filson 2003, pp. 57; 9/11 Commission 7/24/2004, pp. 20)
Controller Tells Pilot that Flight 11 Crashed into WTC - Duffy has just checked in with the air traffic controller at the FAA’s Boston Center who is working at the Cape Sector radar position, and the controller has given him a new heading to fly toward (see 8:54 a.m.-8:55 a.m. September 11, 2001). The controller now asks Duffy, “I understand you’re going out to look for American 11, is that correct?” Duffy replies, “Affirmative.” The controller then tells Duffy that Flight 11 has crashed. He says, “Okay, I just got information that the aircraft has been, uh, crashed into the World Trade Center, so I’m not quite sure what your intentions are, if you’re still going to head that way or you may want to talk to your operations.” Duffy responds, “Okay, we’re going to go over and talk to Huntress right now.” (“Huntress” is the call sign for NORAD’s Northeast Air Defense Sector, NEADS.) (Federal Aviation Administration 9/11/2001; 9/11 Commission 2004) Although Duffy contacts NEADS (see (8:56 a.m.-8:57 a.m.) September 11, 2001), it is unclear whether he talks about the crash, as he indicates he is going to, since, according to the 9/11 Commission Report, “there are no NEADS recordings available of the NEADS senior weapons director and weapons director technician position responsible for controlling the Otis [Air National Guard Base] scramble” (see (8:30 a.m.-3:00 p.m.) September 11, 2001). (9/11 Commission 1/7/2004 pdf file; 9/11 Commission 7/24/2004, pp. 459) It is also unclear whether Duffy passes on the information about Flight 11 hitting the WTC to Nash. But in later interviews, both pilots will claim they were unaware of Flight 11 hitting the WTC until they were informed that a second aircraft had hit the WTC, shortly after that second crash occurred (see (9:03 a.m.) September 11, 2001 and 9:06 a.m.-9:07 a.m. September 11, 2001). (9/11 Commission 2004; Spencer 2008, pp. 84)
Pilots Deny Learning of First Crash - The Cape Cod Times will report that Nash “doesn’t even recall hearing that the first plane hit.” (Dennehy 8/21/2002) Nash will tell author Leslie Filson that when he and Duffy are informed of the second plane hitting the WTC, they are “still under [the] impression [that] American 11 was still airborne” and are “shocked, because we didn’t know the first one had even hit.” (Nash 10/2/2002) And Nash will tell the 9/11 Commission that he “does not remember at which point during the morning of 9/11 he heard of the first crash at the WTC.” He will say he does “remember that the FAA controller he communicated with during flight told him of the second crash,” but add that “this was strange to hear at the time, since he had not been told of the first.” (9/11 Commission 10/14/2003 pdf file) Duffy will tell ABC News that when he is informed of the second crash, “I thought we were still chasing American 11.” (ABC News 9/11/2002) He will tell Filson that when he learns of this second crash, “I didn’t know [the] first one hit” the WTC. (Duffy 10/22/2002) And he will tell the 9/11 Commission that when he “received word that a second aircraft had hit the WTC,” he “still thought they were responding to a hijacked American [Airlines] airliner.” (9/11 Commission 1/7/2004 pdf file)

Lieutenant Colonel Timothy Duffy, one of the two fighter pilots who took off in response to the hijacked Flight 11, contacts NORAD’s Northeast Air Defense Sector (NEADS) to request information on his target, but apparently neither Duffy nor the person he speaks with at NEADS mention that Flight 11 has already hit the World Trade Center during the call, even though both men should already be aware of the crash. (Federal Aviation Administration 9/11/2001; Duffy 10/22/2002; Filson 2003, pp. 60; 9/11 Commission 1/7/2004 pdf file) Duffy and another pilot, Major Daniel Nash, took off from Otis Air National Guard Base at 8:46 a.m. (see 8:46 a.m. September 11, 2001), but they were unaware that at the same time, Flight 11 was crashing into the WTC (see 8:46 a.m. September 11, 2001). (Filson 2003, pp. 57; 9/11 Commission 7/24/2004, pp. 20) Duffy has just spoken to an air traffic controller at the FAA’s Boston Center (see 8:54 a.m.-8:55 a.m. September 11, 2001) and ended the call saying he would talk to NEADS “right now.” (Federal Aviation Administration 9/11/2001) Duffy will later recall that he contacts NEADS at about 8:56 a.m. or 8:57 a.m. (9/11 Commission 1/7/2004 pdf file)
Duffy Told His Target Is over JFK Airport - Duffy presumably talks with Steve Hedrick at NEADS, since Hedrick is responsible for controlling the two Otis fighters. (9/11 Commission 10/27/2003 pdf file) As soon as he has checked in with NEADS, Duffy will recall, “I authenticate to make sure I’ve got the right person.” He then asks for “bogey dope,” meaning information on his target—Flight 11—“to try to find out where the contact is.” (Duffy 10/22/2002; Filson 2003, pp. 60) Duffy is told, incorrectly, that his target is over New York’s JFK International Airport. Duffy replies, “Okay, I know where that is,” and then, he will recall, “we started heading right down to Long Island.” (Scott 6/3/2002; ABC News 9/11/2002)
WTC Crash Apparently Not Discussed - However, it appears that neither Duffy nor the person he speaks with at NEADS mention the plane crash at the WTC during their conversation. Duffy will say that when he is subsequently informed that a second plane has hit the WTC (see (9:03 a.m.) September 11, 2001 and 9:06 a.m.-9:07 a.m. September 11, 2001), he is unaware that Flight 11 has already hit the WTC. (ABC News 9/11/2002; Duffy 10/22/2002; 9/11 Commission 1/7/2004 pdf file) And yet Duffy and personnel at NEADS have already been informed of that first crash.
Pilot and NEADS Previously Notified of Crash - Duffy has just been told of the crash during his conversation with the Boston Center controller (see 8:55 a.m. September 11, 2001). (Federal Aviation Administration 9/11/2001) NEADS personnel learned of it at 8:51 a.m. (see 8:51 a.m. September 11, 2001), although there is now some confusion on the NEADS operations floor over whether the plane that crashed was indeed Flight 11 (see 8:55 a.m.-8:57 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 20; Bronner 8/1/2006) It will later be impossible to ascertain exactly what is said in the current conversation between Duffy and NEADS. Although tape recorders should be recording every radio channel at NEADS, because of a “technical issue,” the positions of Hedrick and his weapons director technician, Bradley Gardner, are supposedly not recorded (see (8:30 a.m.-3:00 p.m.) September 11, 2001). (9/11 Commission 5/25/2004; 9/11 Commission 7/24/2004, pp. 459; Bronner 8/1/2006)
Duffy Searches for Flight 11 on Radar Scope - Duffy will recall that following the call with NEADS, he is looking at his radar scope “to try and find a radar contact over the Kennedy sector with the hijacked aircraft.” Duffy will again contact NEADS to request “bogey dope” a few minutes later, and during that call is informed of the second plane hitting the WTC. (Filson 2003, pp. 60; 9/11 Commission 1/7/2004 pdf file)

The jet fuel that spilled from Flight 11 when it hit the North Tower (see 8:46 a.m. September 11, 2001) has mostly burned up by this time. The National Institute of Standards and Technology (NIST), which investigates the collapses, will say “The initial jet fuel fires themselves lasted at most a few minutes.” (National Institute of Standards and Technology 9/2005, pp. 183) Engineering professor Forman Williams will say the jet fuel “burned for maybe 10 minutes.” (Chertoff et al. 3/2005) Flight 11, a Boeing 767, had a fuel capacity of 23,980 gallons, but was only carrying about 10,000 gallons when it hit the WTC. NIST will estimate that less than 1,500 gallons were consumed in a fireball inside the tower and a comparable amount was consumed in the fireballs outside the building. Therefore, approximately 7,000 gallons splashed onto the office furnishings and started fires on various floors. However, after the jet fuel is used up, office fires burn until the building collapses. NIST will calculate that there were about four pounds per square foot of combustibles in the office space, or about 60 tons per floor. Offices in the WTC actually have fewer combustibles than some other similar spaces due to the small number of interior walls and limited bookshelf space. NIST will later find that only three of sixteen perimeter columns it recovers reached a temperature of 250°C and neither of the two core columns it retrieves reached this temperature. NIST will also find that none of the samples it acquires reaches a temperature above 600°C (see August 27, 2003). Although steel does not melt until its temperature is about 1,600°C, it may begin to lose significant strength at over 500°C. (National Institute of Standards and Technology 9/2005, pp. 20, 29, 24, 77) The jet fuel will also burn up in the South Tower about 10 minutes after it is hit (see 9:13 a.m. September 11, 2001).

Anthony Whitaker.Anthony Whitaker. [Source: ABC News]Sergeant Alan DeVona, an officer with the Port Authority Police Department (PAPD), calls for the evacuation of the Twin Towers over a PAPD radio channel, and his colleague, Captain Anthony Whitaker, then calls for the evacuation of the entire World Trade Center complex, but their orders are apparently not passed on (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; 9/11 Commission 5/18/2004 pdf file; Dwyer and Flynn 2005, pp. 78-79; National Institute of Standards and Technology 9/2005, pp. 200-202) DeVona, the PAPD patrol sergeant at the WTC, is currently in the lobby of the North Tower, coordinating with emergency agencies as they arrive there. (Devona 3/28/2002, pp. 24 pdf file) Whitaker, the PAPD commanding officer at the WTC, is outside the Twin Towers, looking up at the burning North Tower. (Fink and Mathias 2002, pp. 25; Murphy 2002, pp. 184)
Officers Request Evacuation of the WTC - At 8:59 a.m., DeVona calls for the evacuation of the Twin Towers. “As soon as we’re able,” he says over the PAPD radio channel, “I want to start a building evacuation, Building 1 [i.e. the North Tower] and Building 2 [i.e. the South Tower], till we find out what caused this.” Immediately after DeVona says this, at 9:00 a.m., Whitaker makes a similar request over the same radio channel. “Let’s begin an evacuation of the entire complex,” he says. “All buildings, copy?” (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 200-201) Unlike DeVona, Whitaker is ordering the evacuation of not just the Twin Towers, “but also the five other buildings throughout the 16-acre complex—the mercantile exchange, offices of major investment banking concerns, and government agencies, including the FBI, the Secret Service, and the CIA,” according to New York Times reporters Jim Dwyer and Kevin Flynn. (Dwyer and Flynn 2005, pp. 79) Whitaker has decided to evacuate the WTC complex “because of the danger posed by highly flammable jet fuel from Flight 11,” which crashed into the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and “because of the magnitude of the calamity in the North Tower,” according to the 9/11 Commission. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 293)
Request Is the Second Time Evacuation Is Called For - Whitaker will later say that his current request is the “second time” he has called for the evacuation of the WTC complex. He will recall making his previous request—for “a full-scale evacuation of the entire complex”—shortly after Flight 11 crashed. (Fink and Mathias 2002, pp. 23-25; Murphy 2002, pp. 180-181, 184-185) Transcripts of PAPD radio transmissions will show that an evacuation was requested at 8:49 a.m., but only for the upper floors of the North Tower (see 8:49 a.m. September 11, 2001). (Port Authority of New York and New Jersey 9/11/2001 pdf file; National Institute of Standards and Technology 9/2005, pp. 195) And according to some accounts, that request was made by DeVona, not Whitaker. (Port Authority of New York and New Jersey 11/12/2001, pp. 16 pdf file; Devona 3/28/2002, pp. 24 pdf file; Dwyer and Flynn 2005, pp. 78)
Officer Repeats Order, for the Written Record - At 9:01 a.m., an officer at the PAPD desk in Building 5 of the WTC asks if they should evacuate their building. DeVona instructs the officer to wait, saying, “Stand by on Building 5.” Whitaker then asks the officer at the PAPD desk if they have started a “chrono log” yet. (Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 201) A “chrono” is a written record of what the PAPD is doing. (Murphy 2002, pp. 182) The officer replies, “That’s affirmative.” At 9:02 a.m., Whitaker repeats his previous instruction, apparently to make sure it is officially recorded. He says: “For the chrono, evacuate all buildings in the complex. You copy? All building in the complex.” The officer at the PAPD desk acknowledges the instruction and then radios all PAPD units in the field, and tells them to evacuate “all tenants in the buildings… at the Trade Center.” (Port Authority of New York and New Jersey 9/11/2001 pdf file; Port Authority of New York and New Jersey 11/12/2001, pp. 19 pdf file; National Institute of Standards and Technology 9/2005, pp. 202)
Orders Not Passed on to Other Agencies - It is unclear whether DeVona and Whitaker’s orders to evacuate the WTC are passed on. Their orders are given over PAPD radio channel W, which cannot be heard by the deputy fire safety directors in the Twin Towers, who are able to make announcements over the buildings’ public address systems. (WTC News 8/1995 pdf file; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 200-202) According to the 9/11 Commission, there is “no evidence” that the orders are “communicated to officers in other Port Authority Police commands or to members of other responding agencies.” (9/11 Commission 5/18/2004 pdf file) Despite this, an announcement is made over the public address system in the South Tower, advising workers to evacuate, at 9:02 a.m. (see 9:02 a.m. September 11, 2001). Attempts to order workers to evacuate the North Tower are unsuccessful because that building’s public address system was damaged by the plane crash (see (Between 8:47 a.m. and 8:55 a.m.) September 11, 2001). (Prendergast 5/18/2004)

After the first World Trade Center tower is hit, Barry Jennings, a City Housing Authority worker, and Michael Hess, New York’s corporation counsel, head up to the emergency command center of the Mayor’s Office of Emergency Management (OEM), which is on the 23rd floor of WTC 7. (Associated Press 9/11/2001) The center, opened in 1999, is intended to coordinate responses to various emergencies, including terrorist attacks (see June 8, 1999). (CNN 6/7/1999) However, Hess and Jennings find no one there. (National Institute of Standards and Technology 9/2005, pp. 109-110; BBC 7/6/2008)
Center Is Empty; Jennings Warned to Leave - Jennings will describe that, when he arrives at the emergency command center, “To my amazement, nobody’s there.” He says: “I saw coffee that was still hot, that was still smoldering. They had screens all over the place, but the screens were blank. So I didn’t know what was going on.” He then phones several individuals, including one of his superiors. When Jennings says where he is, the superior responds: “Get out of there. Get out of there now.” Hess then runs back into the center, after having found the stairwell, and says: “We’re the only ones up here. We gotta get out of here.” (Dylan Avery 2007; BBC 7/6/2008)
9/11 Commission Claims Command Center Not Evacuated until Later - Yet, according to the 9/11 Commission, “After the South Tower was hit [at 9:03], OEM senior leadership decided to remain in its ‘bunker’ and continue conducting operations, even though all civilians had been evacuated from 7 WTC.” The Commission will claim the emergency command center is not evacuated until 9:30 a.m. (see (9:30 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 305) But according to the London Independent, Hess and Jennings arrive there by the time the South Tower is hit, which suggests the center is evacuated earlier than officially claimed. (Vallely 9/13/2001) Jennings himself will recall, “I had to be inside on the 23rd floor when the second plane hit.” (Dylan Avery 2007) The possibility that the emergency command center is evacuated earlier than the 9/11 Commission claims is partly confirmed by OEM Commissioner John Odermatt, who later says that after the first plane hit the WTC, he left only two staffers there (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001). (Barrett and Collins 2006, pp. 34) Jennings and Hess subsequently head down the stairs, but will become trapped in WTC 7, and have to be rescued by firefighters (see 12:10 p.m.-12:15 p.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 109-110)

According to a soldier at the scene, WTC Building 7 is evacuated before the second tower is hit. (Fleming-Michael 10/18/2001) The National Institute of Standards and Technology (NIST) states, “As the second aircraft struck WTC 2, a decision was made to evacuate WTC 7.” This would be just after the Port Authority Police Department called for the evacuation of the entire WTC complex (see 8:59 a.m.-9:02 a.m. September 11, 2001). But by this time, “many WTC 7 occupants [have] already left the building and others [have] begun a self-evacuation of the building.” (National Institute of Standards and Technology 9/2005, pp. 109) All individuals in the Secret Service’s New York field office, located in WTC 7, were ordered to evacuate after the first attack, and they are in the process of doing so when the second plane hits the South Tower. (PCCW Newsletter 3/2006) The Secret Service has a Stinger missile secretly stored in the WTC, to be used to protect the president if there were an attack on the city when he visits it. (Weiss 2003, pp. 379) Presumably, this missile is abandoned with the evacuation. The Office of Emergency Management’s command center, on the 23rd floor of WTC 7, is not evacuated until later, at 9:30 a.m. (see (9:30 a.m.) September 11, 2001).

Personnel with New York City’s Office of Emergency Management (OEM) request “air security” over the city following the second crash at the World Trade Center. Staffers in the OEM’s Emergency Operations Center (EOC) in WTC Building 7 contact the FAA and request air protection over New York “immediately” after Flight 175 crashed into the South Tower, at 9:03 a.m. (see 9:03 a.m. September 11, 2001), according to a report by the Mineta Transportation Institute. The FAA assures them that federal support is on the way but it also instructs them to use New York Police Department and Port Authority Police Department air assets to clear the airspace around the WTC. Additionally, it mentions that the control tower at New York’s JFK International Airport is reporting that an unaccounted-for plane is heading for the city. (Jenkins and Edwards-Winslow 9/2003, pp. 16 pdf file)
Firefighter Thought the First Crash Might Be an Attack - OEM staffers apparently contact the FAA on their own initiative. However, personnel in the EOC are also contacted by Richard Sheirer, the director of the OEM, after the second crash at the WTC and he tells them to request air protection over the city. (9/11 Commission 4/7/2004) Sheirer is at the Fire Department’s command post in the lobby of the North Tower (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001). (Griscom 10/15/2001; 9/11 Commission 5/18/2004 pdf file) He possibly calls the EOC to request air cover on the suggestion of firefighter Timothy Brown, a supervisor at the OEM who is with him at the command post. Brown started discussing the need to have fighter jets over New York before the second hijacked plane hit the WTC. “One of the first things I brought up with my bosses in the Fire Department was that we needed to get air cover from the military just in case this was a terrorist attack,” he will later recall. (Brown 1/31/2003) “We weren’t sure [if] this was a terrorist attack, but we knew there was a good possibility that it was,” he will comment. (Brown 1/15/2002)
OEM Director Calls His Deputy to Request Air Support - After Sheirer and the other officials with him are notified about Flight 175 crashing into the South Tower, they realize this is definitely a terrorist attack. Sheirer then calls Richard Rotanz, the deputy director of the OEM, about getting air protection over New York. (9/11 Commission 4/7/2004) Rotanz initially went to the North Tower following the first crash at the WTC, but he is now back at the EOC. (Rotanz 1/2002) Sheirer instructs him to call the State Emergency Management Office in Albany, New York, and get it to arrange for the Air National Guard to provide cover for the city. He also instructs Rotanz to contact the Pentagon and tell it to arrange “air support.” Rotanz says there are other unaccounted-for planes, besides the two that crashed into the WTC, which may be heading for New York and Sheirer passes this information on to the officials with him in the lobby of the North Tower (see (9:30 a.m.) September 11, 2001). It is unclear exactly when Sheirer calls Rotanz. Sheirer will tell the 9/11 Commission that he contacts the EOC “[a]lmost instantly” after Flight 175 crashed into the South Tower “to confirm that air support was on its way to New York.”
OEM Director Asks for Helicopters to Protect the City - Following his call with Rotanz, Sheirer gives the instruction for the Police Department’s aviation unit to prevent any other planes from hitting a target in New York. “But looking back, how could a helicopter stop a commercial jet going over 400 miles per hour?” he will comment. (9/11 Commission 4/7/2004; 9/11 Commission 5/18/2004 pdf file) Fighters will arrive over Manhattan at 9:25 a.m., according to the 9/11 Commission Report (see 9:25 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 24) However, numerous witnesses on the ground there will recall only noticing fighters overhead after 10:00 a.m. (see (9:45 a.m.-10:45 a.m.) September 11, 2001). Brown will later on try, unsuccessfully, to call the White House to make sure that air cover is being provided for New York (see (Shortly After 9:37 a.m.) September 11, 2001). (Brown 1/15/2002; Brown 6/30/2002 pdf file)

In the lobby of the north WTC tower, just after the South Tower is hit, Fire Commissioner Thomas Von Essen speaks briefly to Fire Chief Ray Downey. According to Von Essen, Downey—who is a highly respected expert on building collapses—says to him, “You know, these buildings can collapse.” Von Essen later recalls, “He just said it in passing, not that these buildings will collapse in 40 minutes and we have to get everybody out of here, or not that they’ll collapse by tomorrow, or not that they necessarily will collapse at all. Just that they can collapse.” (Fink and Mathias 2002, pp. 229; 9/11 Commission 5/18/2004) But other firefighters do not appear to have shared this concern. According to the National Institute of Standards and Technology (NIST), the Fire Department command officers who are planning for operations inside the Twin Towers expect that there will “be localized collapse conditions on the damaged fire floors,” but do “not expect that there [will] be any massive collapse conditions or complete building collapse.” At the end of its three-year investigation of the WTC collapses, NIST will report, “No one interviewed indicated that they thought that the buildings would completely collapse.” (National Institute of Standards and Technology 9/2005, pp. 72 and 75-76) In fact, Deputy Fire Commissioner Lynn Tierney will meet up with Downey and others—including Von Essen—slightly later, on the south lawn of the WTC complex, where a new command center is set up. At that time, according to Tierney, Downey will only be concerned that the 360-foot antenna atop the North Tower will fall, and “No one ever thought the towers were going to come down.” (Wereschagin 9/11/2006) However, shortly before the first tower comes down, EMT Richard Zarrillo will be asked to relay a message to some senior firefighters that the mayor’s Office of Emergency Management “says the buildings are going to collapse” (see (Before 9:59 a.m.) September 11, 2001). And later in the day, Mayor Giuliani will recount that around the same time, he had been told “that the World Trade Center was going to collapse” (see (Before 9:59 a.m.) September 11, 2001). The 9/11 Commission will state, “The best estimate of one senior [fire] chief, provided to the chief of the department sometime between 9:25 and 9:45, was that there might be a danger of collapse [of the South Tower] in a few hours, and therefore units probably should not ascend above floors in the sixties.” The Commission does not state, however, whether this fire chief was referring to a total building collapse or just a localized collapse. (9/11 Commission 5/19/2004) Ray Downey is killed when the second tower collapses at 10:28 a.m. (Dwyer and O'Donnell 9/9/2005)

The two F-15s launched from Otis Air National Guard Base in response to Flight 11 finally exit their “holding pattern” off the Long Island coast, and fly directly toward New York. (9/11 Commission 8/26/2004, pp. 26) According to the 9/11 Commission, the two fighters had been sent to the military-controlled airspace over the Atlantic Ocean because they lacked a target, and so have been flying in this area for the last few minutes (see 9:09 a.m.-9:13 a.m. September 11, 2001). They are currently about 115 miles from the city. (9/11 Commission 7/24/2004, pp. 20 and 24) Visibility is extremely clear and Lt. Col. Timothy Duffy, one of the two Otis pilots, will later recall that he can see the World Trade Center towers burning in the distance. He has just called NORAD’s Northeast Air Defense Sector (NEADS) and asked: “What do you want me to do next? What do you need from me right this second?” (Dennehy 8/21/2002; Filson 2003, pp. 63)
NEADS Takes Control of Airspace - At NEADS, battle commander Colonel Robert Marr had lost patience waiting for approval from the FAA to send the Otis jets to New York, and so has just declared “AFIO” (Authorization for Interceptor Operations) for New York airspace, which gives the military authority to enter that airspace without permission (see (9:12 a.m.) September 11, 2001). (Spencer 2008, pp. 113) Therefore, a couple of minutes after Duffy made his inquiry, NEADS weapons controller Major Steve Hedrick gets back to him to relay the AFIO directive. Hedrick instructs Duffy: “Proceed direct to Manhattan and set up combat air patrol. NORAD has taken over control of the airspace.” Duffy confirms, “Okay, got that.”
Fighters Request Lower Altitude Clearance - Duffy, who is currently flying at 20,000 feet, immediately requests clearance from the FAA to fly at lower altitude. He calls its New York Center and identifies himself with his military call sign, saying, “Panta 4-5 needs to go direct to New York City and I need lower [altitude]… right now.” The controller gives him a heading and clears him to descend to 18,000 feet. After the two Otis jets exit military airspace at 9:13, they descend to 18,000 feet and Duffy asks the New York Center controller again for lower altitude clearance. He is given permission to descend to 16,000 feet, and upon further requests is allowed to go down to 11,000 feet. Finally, Duffy insists, “Guys, I need all the way to the surface!” and the controller replies: “Roger. Panta 4-5 is clear all altitudes.” “They just gave us the airspace,” Duffy will later recall. (Filson 2003, pp. 63; Spencer 2008, pp. 113-114)
Conflicting Times - According to the 9/11 Commission, the two Otis fighters will arrive over Manhattan at 9:25 (see 9:25 a.m. September 11, 2001), but numerous witnesses on the ground there will later recall only noticing fighters overhead after 10:00 a.m. (see (9:45 a.m.-10:45 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 24)

Barry JenningsBarry Jennings [Source: Public domain]Barry Jennings, a City Housing Authority worker, and Michael Hess, New York’s corporation counsel, hear unexplained explosions inside World Trade Center Building 7, where they become trapped. (UPN 9 9/11/2001; BBC 7/6/2008) The two men went up to the emergency command center on the 23rd floor of WTC 7 after the first attack occurred (see (Shortly Before 9:03 a.m.) September 11, 2001). (Associated Press 9/11/2001; Vallely 9/13/2001) At some point, the power goes out in the building. They then start walking down the stairs to get out. According to Hess, when the two men get down to the eighth floor, “there was an explosion and we’ve been trapped on the eighth floor with smoke, thick smoke, all around us, for about an hour and a half.” (UPN 9 9/11/2001) Jennings will also recall hearing explosions. He will say: “I made it to the sixth floor and there was an explosion. The explosion was beneath me.” (Dylan Avery 2007) He will add, “[T]he staircase that I was standing on just gave way,” and, “Then we made it back to the eighth floor, I heard some more explosions.” (BBC 7/6/2008) Jennings says to Hess: “This is it; we’re dead. We’re not gonna make it out of here.” (Penn State Public Broadcasting 3/1/2002) The National Institute of Standards and Technology (NIST) will claim the two men head down the stairs after 9:59, when the first collapse occurs, and then become trapped around the time the second tower collapses, at 10:28. (National Institute of Standards and Technology 9/2005, pp. 109-110) But according to the London Independent, they start heading down the stairs after the second attack at 9:03, which suggests the explosions begin earlier on. (Vallely 9/13/2001) Jennings will confirm this, saying that when he hears the first explosion, “Both [of the Twin Towers] were still standing,” meaning it occurs before 9:59. He says: “I was trapped in there when both [Twin Towers] came down.… All this time I’m hearing explosions.” (Dylan Avery 2007) The cause of the explosions is unclear. Later on, firefighters will rescue Hess and Jennings from the building (see 12:10 p.m.-12:15 p.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 109-110)

Transportation Secretary Norman Mineta. 
Transportation Secretary Norman Mineta. [Source: US Department of Transportation]Transportation Secretary Norman Mineta arrives at the White House bunker—the Presidential Emergency Operations Center (PEOC)—containing Vice President Dick Cheney and others. Mineta will tell NBC News that he arrives there at “probably about 9:27,” though he later says to the 9/11 Commission that he arrives at “about 9:20 a.m.” He also later recalls that Cheney is already there when he arrives. (Mineta 9/11/2002; 9/11 Commission 5/23/2003; Martin 7/4/2004; Mineta 6/3/2006) This supports accounts of Cheney reaching the bunker not long after the second WTC crash (see (Shortly After 9:03 a.m.) September 11, 2001). Questioned about this in 2007 by an activist group, Mineta will confirm that Cheney was “absolutely… already there” in the PEOC when he arrived, and that “This was before American Airlines [Flight 77] went into the Pentagon,” which happens at 9:37. Yet, while admitting there is “conflicting evidence about when the vice president arrived” in the PEOC, the 9/11 Commission will conclude that the “vice president arrived in the room shortly before 10:00, perhaps at 9:58.” Mineta also later claims that when he arrives in the PEOC, Mrs. Lynne Cheney, the wife of the vice president, is already there. Yet the 9/11 Commission will claim she only arrives at the White House at 9:52 (see (9:55 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 40; Mineta 6/26/2007) Once in the PEOC, Mineta establishes open phone lines with his office at the Department of Transportation and with the FAA Operations Center. (Mineta 6/3/2006)

The New York City Port Authority closes all bridges and tunnels in New York City. (CNN 9/12/2001; New York Times 9/12/2001; MSNBC 9/22/2001; Associated Press 8/21/2002)

According to the 9/11 Commission, the two fighters launched from Otis Air Force Base (see 8:46 a.m. September 11, 2001) arrive over Manhattan at this time, after exiting their holding pattern off the Long Island coast at 9:13 a.m. They then establish a combat air patrol (CAP) over New York. The commission bases this conclusion on its analysis of FAA radar data and interviews with the two Otis pilots. (9/11 Commission 7/24/2004, pp. 24 and 460; 9/11 Commission 8/26/2004, pp. 26 and 92) However, numerous eyewitnesses on the ground will report first noticing fighters over New York significantly later, more than an hour after the 9/11 Commission claims according to some accounts (see (9:45 a.m.-10:45 a.m.) September 11, 2001).

Thomas Von Essen.Thomas Von Essen. [Source: Publicity photo]The Office of Emergency Management’s Emergency Operations Center (EOC) in World Trade Center Building 7 is evacuated in response to a report that more commercial planes are unaccounted for. (9/11 Commission 7/24/2004, pp. 305) The EOC, which opened in 1999 (see June 8, 1999), is a state-of-the-art facility on the 23rd floor of WTC 7 that is intended to serve as a meeting place for city leaders in the event of an act of terrorism or other kind of crisis. (CNN 6/7/1999; City of New York 2/18/2001) Office of Emergency Management (OEM) officials activated it shortly after Flight 11 crashed into the North Tower of the WTC (see (Shortly After 8:46 a.m.) September 11, 2001). (Bylicki 6/19/2003; 9/11 Commission 7/24/2004, pp. 293)
Staffers Discussed Evacuation after the First Crash - Soon after the crash occurred, officials in the EOC “began discussing with OEM staff whether or not they should evacuate the building,” according to a report by Tricia Wachtendorf of the Disaster Research Center at the University of Delaware. (Wachtendorf 2004, pp. 77) Richard Rotanz, deputy director of the OEM, and some other officials in the EOC conducted a “threat analysis” after the second hijacked plane crashed into the WTC, at 9:03 a.m. (see 9:03 a.m. September 11, 2001). (Rotanz 1/2002)
Staffers Want to Stay in the Operations Center - Personnel are reluctant to leave the EOC because in it they have “a tremendous amount of resources at their fingertips” and they are “best able to handle an emergency of this scale,” Wachtendorf will later write. Furthermore, there is no clear procedure to move to or establish an alternative operations center if it is abandoned. “I couldn’t think of where we would go if we left the EOC because at that time we didn’t have a backup facility,” one official will recall. There is, in fact, “no formalized evacuation plan for the EOC,” according to Wachtendorf. (Wachtendorf 2004, pp. 77-79)
OEM Deputy Director Orders the Evacuation - However, Richard Bylicki, a police sergeant assigned to the OEM, was told during a call with the FAA that at least one other plane, in addition to the two that hit the Twin Towers, is unaccounted for and possibly heading for New York (see (9:30 a.m.) September 11, 2001), and he passed this information on to Rotanz. (Bylicki 6/19/2003) Rotanz was given the same warning by a Secret Service agent who works in WTC 7. (Rotanz 1/2002; 9/11 Commission 7/24/2004, pp. 305) Based on this information, he “surmised that [WTC 7] was potentially the next target,” Bylicki will recall. He consequently now orders all OEM employees to leave the building. (Bylicki 6/19/2003; 9/11 Commission 4/7/2004) A Secret Service agent, presumably the one who told Rotanz about the additional unaccounted-for planes, also reportedly advises EOC personnel to evacuate. He says, “There’s a reported third plane headed toward the East Coast and we’re warning everybody to vacate the building,” Fire Department Captain Abdo Nahmod will recall. (Journal of Emergency Medical Services 9/2011, pp. 42 pdf file)
Some Liaisons Have Come to the Operations Center - Various city agencies were contacted after the EOC was activated and instructed to send their designated representatives to the center. None of these representatives have arrived by the time the EOC is evacuated, according to the 9/11 Commission Report. (9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 293, 305) However, contradicting this claim, a number of emergency responders will recall arriving at the EOC before it is evacuated, to serve as representatives for their agencies. (Nahmod 10/11/2001; Zarrillo 10/25/2001; Yakimovich 12/4/2001; Journal of Emergency Medical Services 9/2011, pp. 42 pdf file)
Staffers Are Initially Slow to Leave - Personnel reportedly do not initially respond to the evacuation order with a sense of urgency. They “calmly collected personal belongings and began removing OEM records,” a report by the Mineta Transportation Institute will state. But they are subsequently “urged to abandon everything and leave the building quickly.” (Jenkins and Edwards-Winslow 9/2003, pp. 16 pdf file) After evacuating from the EOC, they assemble in the lobby of WTC 7 and await further instructions over radio. (Bylicki 6/19/2003) Most of them think they are only temporarily abandoning their facility and expect to return to it later in the day. They do not anticipate WTC 7 being affected by fires (see 4:10 p.m. September 11, 2001) and then collapsing late this afternoon (see (5:20 p.m.) September 11, 2001). (Wachtendorf 2004, pp. 84)
Fire Commissioner Will Be Surprised That the Center Is Evacuated - Fire Commissioner Thomas Von Essen will be surprised when he finds that the EOC has been evacuated, since the center was designed for dealing with a crisis like the one currently taking place. “I thought that was where we should all be because that’s what [it] was built for,” he will comment. He will arrive at WTC 7 looking for Mayor Rudolph Giuliani shortly before 9:59 a.m., when the South Tower collapses (see 9:59 a.m. September 11, 2001). When he learns that the EOC has been evacuated, he will think: “How ridiculous. We’ve got a 13-million-dollar command center and we can’t even use it.” He will say in frustration: “How can we be evacuating OEM? We really need it now.” (Essen 2002, pp. 26; Fink and Mathias 2002, pp. 230)
Time of the Evacuation Is Unclear - It is unclear exactly when the EOC is evacuated. The order to evacuate is issued at “approximately 9:30” a.m., according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 305) But, according to a report by the National Institute of Standards of Technology, the evacuation occurs slightly later than this, at “approximately 9:44 a.m.” (National Institute of Standards and Technology 9/2005, pp. 109) Other accounts will suggest it may even have taken place before the second attack on the WTC occurred (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001 and (Shortly Before 9:03 a.m.) September 11, 2001). (Barrett and Collins 2006, pp. 34; Dylan Avery 2007) Many people in the rest of WTC 7 left the building earlier on, around the time of the second attack (see (9:03 a.m.) September 11, 2001). (9/11 Commission 5/18/2004 pdf file; National Institute of Standards and Technology 9/2005, pp. 109)

The OEM command bus.The OEM command bus. [Source: New York City Office of Emergency Management]Personnel from New York’s Office of Emergency Management (OEM) use the OEM command bus as their command post after their command center in World Trade Center Building 7 has been evacuated. (Jenkins and Edwards-Winslow 9/2003, pp. 20 pdf file; 9/11 Commission 4/7/2004) The OEM command center, on the 23rd floor of WTC 7, is intended to coordinate the city’s response to emergencies, including terrorist attacks. (Miller 6/8/1999) However, it was evacuated at around 9:30 a.m., according to the 9/11 Commission Report, although other accounts will suggest the evacuation occurs at an earlier or later time (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001, (Shortly Before 9:03 a.m.) September 11, 2001, and (9:30 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 305; National Institute of Standards and Technology 9/2005, pp. 109; Barrett and Collins 2006, pp. 34) OEM personnel therefore now have to operate from the their command bus. (Jenkins and Edwards-Winslow 9/2003, pp. 20 pdf file; 9/11 Commission 4/7/2004) The bus, known as the Interagency Command Center (ICC), is equipped with computers, a state-of-the-art communications system, and on-board electrical generation. It also has its own conference room. (Sandberg 9/21/2001; Jenkins and Edwards-Winslow 9/2003, pp. 20 pdf file; Power 2004, pp. 172) It can be deployed to the location of a major emergency, to serve as an on-scene command post for coordinating interagency operations and communications. (City of New York 2001, pp. 8 pdf file) The OEM’s emergency plans and vital records are kept in WTC 7, and, due to the evacuation of the command center, are now inaccessible. Fortunately, after they move to the ICC, OEM personnel are able to implement their emergency action plans from memory and by utilizing their combined knowledge. (Jenkins and Edwards-Winslow 9/2003, pp. 20 pdf file) After the Twin Towers collapse, the ICC will move to a firehouse on Houston Street, to provide support to Mayor Rudolph Giuliani and his entourage, who have set up a temporary headquarters at that location (see (After 10:28 a.m.-12:00 pm.) September 11, 2001). (Sandberg 9/21/2001; 9/11 Commission 4/7/2004)

A KC-135 Stratotanker.A KC-135 Stratotanker. [Source: Boeing]The two F-15 fighter jets launched from Otis Air National Guard Base in response to Flight 11 (see 8:46 a.m. September 11, 2001) are finally able to refuel, after they request to rendezvous with a tanker plane that was scheduled to refuel Otis fighters out on training missions this morning. (Scott 6/3/2002; Spencer 2008, pp. 153)
Fighters Low on Fuel - By around 9:35 a.m., according to author Lynn Spencer, the two Otis fighters are running increasingly low on fuel and need to find a fuel tanker right away. For about the last 25 minutes, technicians at NORAD’s Northeast Air Defense Sector (NEADS) have been searching for a tanker (see (9:09 a.m.) September 11, 2001). (Spencer 2008, pp. 112 and 152-153) A member of staff at NEADS in fact talked over the radio with a KC-135 tanker from Bangor, Maine, at around 9:05 a.m., and the plane’s crew agreed to provide support to the Otis fighters launched in response to Flight 11 (see 9:04 a.m.-9:06 a.m. September 11, 2001). (North American Aerospace Defense Command 9/11/2001; North American Aerospace Defense Command 9/11/2001) However, the pilots of these fighters have apparently not heard back from NEADS about whether it has been able to find a tanker for them. Now one of the pilots, Major Daniel Nash, has come up with a solution. Prior to being put on alert duty, he had been acting as the scheduling officer at Otis Air Base, and he therefore knows that a training mission a number of Otis fighters were scheduled to fly today called for refueling (see (9:00 a.m.-9:24 a.m.) September 11, 2001). Consequently he knows about the KC-135 tanker plane from Bangor that NEADS communicated with earlier on, which had been scheduled to support those fighters during their training. (102nd Fighter Wing 2001; Spencer 2008, pp. 152-153)
Tanker Heading toward Training Airspace - The tanker plane, which has the call sign “Maine 85,” is one of the eight KC-135s that are attached to the 101st Air Refueling Wing, based at Bangor International Airport. Its pilots are Lieutenant Colonel Adam Jenkins and Lieutenant Colonel Andy Marshall. (Cohen 9/13/2001; Ricker 9/9/2011) It had been scheduled to rendezvous with the Otis fighters on their training mission about 20 minutes from now in “Whiskey 105,” the military training airspace just south of Long Island, where Nash and his fellow Otis pilot Timothy Duffy had earlier been flying in a “holding pattern” (see 9:09 a.m.-9:13 a.m. September 11, 2001). The KC-135 should be on its way there now. Nash calls Duffy and tells him, “[W]e have a tanker scheduled for the training missions this morning off the coast in 105.” Duffy calls NEADS and requests that the KC-135 orbit at 20,000 feet above New York’s JFK International Airport. NEADS then coordinates with the 101st Air Refueling Wing to borrow the tanker. (Scott 6/3/2002; Spencer 2008, pp. 153)
Tanker Directed toward New York - The KC-135 is instructed to fly toward Manhattan. Jenkins will later recall, “We were told to start heading west to the city.” The voice over his radio tells him, “We’ll give you details along the way.” (Ricker 9/9/2011) Soon, the KC-135 is flying an orbit over JFK Airport and the two Otis fighters then take turns refueling. (Grant 2004, pp. 21; Grant and Thompson 10/6/2006, pp. 4 pdf file; Spencer 2008, pp. 153) According to the 9/11 Commission Report, the two Otis fighters arrived over Manhattan at 9:25 a.m. (see 9:25 a.m. September 11, 2001), but accounts of most witnesses on the ground indicate they do not arrive there until after 10:00 a.m. (see (9:45 a.m.-10:45 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 24)

The Pentagon explodes. 
The Pentagon explodes. [Source: Donley/ Sipa]Flight 77 crashes into the Pentagon. All 64 people on the plane are killed. A hundred-and-twenty-four people working in the building are killed, and a further victim will die in hospital several days later. Hijackers Hani Hanjour, Khalid Almihdhar, Majed Moqed, Nawaf Alhazmi, and Salem Alhazmi presumably are killed instantly. (Typically, they are not included in the death counts.) (CNN 9/17/2001; North American Aerospace Defense Command 9/18/2001; Ellison 10/17/2001; Vogel 11/21/2001; Levin, Adams, and Morrison 8/12/2002; Associated Press 8/21/2002; MSNBC 9/3/2002; ABC News 9/11/2002; CBS 9/11/2002) Flight 77 hits the first floor of the Pentagon’s west wall. The impact and the resulting explosion heavily damage the building’s three outer rings. The path of destruction cuts through Army accounting offices on the outer E Ring, the Navy Command Center on the D Ring, and the Defense Intelligence Agency’s comptroller’s office on the C Ring. (Vogel 2007, pp. 431 and 449) Flight 77 strikes the only side of the Pentagon that had recently been renovated—it was “within days of being totally [renovated].” (US Department of Defense 9/15/2001) “It was the only area of the Pentagon with a sprinkler system, and it had been reconstructed with a web of steel columns and bars to withstand bomb blasts. The area struck by the plane also had blast-resistant windows—two inches thick and 2,500 pounds each—that stayed intact during the crash and fire. While perhaps, 4,500 people normally would have been working in the hardest-hit areas, because of the renovation work only about 800 were there.” More than 25,000 people work at the Pentagon. (Schrader 9/16/2001) Furthermore, the plane hits an area that has no basement. As journalist Steve Vogel later points out, “If there had been one under the first floor, its occupants could easily have been trapped by fire and killed when the upper floors collapsed.” (Vogel 2007, pp. 450)

Firefighter Timothy Brown, a supervisor at New York City’s Office of Emergency Management, is told that a suspicious plane that was reportedly flying toward New York has crashed. (Brown 1/31/2003) After the second hijacked plane crashed into the World Trade Center, at 9:03 a.m. (see 9:03 a.m. September 11, 2001), Brown went to the lobby of the South Tower to help open a command post. (Brown 6/30/2002 pdf file; Brown 10/7/2015) While there, he heard over his radio that another suspicious aircraft, in addition to the planes that hit the Twin Towers, was heading toward New York (see (9:30 a.m.) September 11, 2001). Since then, he has talked to the New York State Emergency Management Office about getting fighter jets to protect New York (see (Shortly After 9:37 a.m.) September 11, 2001). (Brown 1/31/2003) He then told people at the command post they should “be prepared to be hit again.” (Brown 6/30/2002 pdf file) However, he now hears over his radio that “the third plane was no longer inbound, that it had crashed.” This news “gave us a sigh of relief,” he will later comment. (Brown 1/31/2003) The identity of this third suspicious plane is unclear. Brown will say it turned out to be “the one that crashed in Pennsylvania,” meaning Flight 93. (Brown 6/30/2002 pdf file) However, this is apparently impossible, since Brown will describe hearing it has crashed before 9:59 a.m., when the South Tower collapses (see 9:59 a.m. September 11, 2001), but Flight 93 will reportedly crash later on, at 10:03 a.m. (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). (Brown 1/31/2003; 9/11 Commission 7/24/2004, pp. 30)

Stacia Rountree.Stacia Rountree. [Source: Vanity Fair]Colin Scoggins, the military liaison at the FAA’s Boston Center, contacts NORAD’s Northeast Air Defense Sector (NEADS) and incorrectly notifies it that another aircraft, Delta Air Lines Flight 1989, is a possible hijacking. (9/11 Commission 2004; Bronner 8/1/2006) Boston Center previously called NEADS at 9:27 and said that Delta 1989 was missing (see 9:27 a.m. September 11, 2001). (North American Aerospace Defense Command 9/11/2001; 9/11 Commission 5/23/2003)
NEADS Technicians Respond - At NEADS, Stacia Rountree, the ID technician who takes Scoggins’s call, announces to her colleagues: “Delta ‘89, that’s the hijack. They think it’s possible hijack.… South of Cleveland.” The plane’s transponder is still on, and she adds, “We have a code on him now.” Rountree’s team leader, Master Sergeant Maureen Dooley, instructs: “Pick it up! Find it!” The NEADS technicians quickly locate Delta 1989 on their radar screens, just south of Toledo, Ohio, and start alerting other FAA centers to it. (Bronner 8/1/2006; Spencer 2008, pp. 177) NEADS mission crew commander Major Kevin Nasypany will be notified by his staff of the suspected hijacking at about 9:41 or 9:42 a.m. (9/11 Commission 1/22/2004 pdf file) NEADS never loses track of Delta 1989. It will follow it on radar as it reverses course over Toledo, heads east, and then lands in Cleveland (see (10:18 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 28) It will order Air National Guard fighter jets from Selfridge and Toledo to intercept the flight (see (9:55 a.m.) September 11, 2001 and 10:01 a.m. September 11, 2001). (Spencer 2008, pp. 178-179) But it will soon learn that Delta 1989 is not in fact hijacked. (9/11 Commission 7/24/2004, pp. 28)
Cleveland Center, Not Boston, Handling Delta 1989 - Although Boston Center notifies NEADS of the suspected hijacking, Delta 1989 is in fact being handled by the FAA’s Cleveland Center. (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 10-12) Cleveland Center air traffic controllers suspected that Delta 1989 had been hijacked at around 9:30 a.m. (see (9:28 a.m.-9:33 a.m.) September 11, 2001), but apparently only informed the FAA’s Command Center, and not NEADS, of this. (Adams, Levin, and Morrison 8/13/2002) To explain why Boston Center alerts NEADS to the flight, the 9/11 Commission will later comment that, “Remembering the ‘we have some planes’ remark” (see 8:24 a.m. September 11, 2001), the Boston Center simply “guessed that Delta 1989 might also be hijacked.”
Similar to First Two Hijacked Planes - Like Flights 11 and 175, the two aircraft that have crashed into the World Trade Center (see 8:46 a.m. September 11, 2001 and 9:03 a.m. September 11, 2001), Delta 1989 took off from Boston’s Logan Airport. (9/11 Commission 7/24/2004, pp. 27-28) According to the New York Times, it left there at about the same time as Flights 11 and 175 did, meaning around 8:00 to 8:15 a.m. (Wald and van Natta 10/18/2001; 9/11 Commission 7/24/2004, pp. 32) Like those two aircraft, it is a Boeing 767. (Adams, Levin, and Morrison 8/13/2002; 9/11 Commission 7/24/2004, pp. 27-28) But, unlike those flights, its transponder has not been turned off, and so it is still transmitting a beacon code. (9/11 Commission 7/24/2004, pp. 28; Bronner 8/1/2006) It is unclear what Delta 1989’s intended destination is. According to some accounts, like Flights 11 and 175 were, it is bound for Los Angeles. (Singer 9/11/2001; Wald and van Natta 10/18/2001; Adams, Levin, and Morrison 8/13/2002; Velez 9/24/2007; Spencer 2008, pp. 167) Other accounts will say that its destination is Las Vegas. (9/11 Commission 7/24/2004, pp. 28; Bronner 8/1/2006) Personnel at NEADS are apparently informed that Las Vegas is the intended destination. Around this time, one member of staff there tells her colleagues that the flight is “supposed to go to Vegas.” (North American Aerospace Defense Command 9/11/2001)
One of Numerous Incorrect Reports - The 9/11 Commission will comment: “During the course of the morning, there were multiple erroneous reports of hijacked aircraft (see (9:09 a.m. and After) September 11, 2001). The report of American 11 heading south was the first (see 9:21 a.m. September 11, 2001); Delta 1989 was the second.” (9/11 Commission 7/24/2004, pp. 28)

Donald Cook.Donald Cook. [Source: US Air Force]Lieutenant General Donald Cook, acting commander of the Air Combat Command (ACC), receives a call in which he is told the White House wants to know how quickly the Predator drone, a remotely controlled, unmanned plane, can be deployed over Afghanistan. Cook, who is currently at ACC headquarters at Langley Air Force Base, Virginia, receives the call “less than one hour after” the first hijacked plane crashed into the World Trade Center (see 8:46 a.m. September 11, 2001), according to journalist and author Richard Whittle, which means the call is made before around 9:45 a.m. The caller, Whittle will write, says that the “White House [wants] to know how soon the Air Force could get three Predators over Afghanistan—with missiles under their wings.” The identity of the caller is unstated. Later this morning, Cook will talk to Colonel Ed Boyle, director of intelligence for the ACC, who is away in Arizona, and pass on this information to him (see (After 10:00 a.m.) September 11, 2001). (Whittle 2014, pp. 236; Whittle 3/2015) The first Predator mission over Afghanistan will take place on September 18 and on October 7, the first day of the war in Afghanistan, the first armed Predator mission will be flown (see September 18-October 7, 2001 and October 7, 2001). (9/11 Commission 3/24/2004 pdf file; Grimes 2014, pp. 335)

According to the accounts of numerous witnesses on the ground near the World Trade Center, military fighter jets are first noticed flying over Manhattan either shortly before or soon after the second collapse, at 10:28 a.m. Some witnesses recall fighters arriving just before this collapse:
bullet Emergency medical technicians Dulce McCorvey and Michael D’Angelo hear fighters flying over Manhattan at unspecified times after the first tower’s collapse. (McCorvey 10/3/2001; D'Angelo 10/24/2001)
bullet Fire Lieutenant Sean O’Malley and firefighters Pete Giudetti and Dan Potter notice jet fighters flying overhead soon before the second collapse. (Guidetti 10/12/2001; O'Malley 12/6/2001; Smith 2002, pp. 49-50)
Other witnesses say the fighters arrive soon after this collapse:
bullet Deputy Fire Chief Robert Browne, police officer Peter Moog, and emergency medical technicians Richard Zarrillo and Jason Katz notice fighters overhead immediately after, or fairly soon after, the second tower’s collapse. (Browne 10/24/2001; Zarrillo 10/25/2001; Katz 12/20/2001; Fink and Mathias 2002, pp. 79-80)
bullet Mayor Rudolph Giuliani, Police Commissioner Bernard Kerik, and Office of Emergency Management Director Richard Sheirer are heading north together after leaving their temporary command post on Barclay Street (see (9:50 a.m.-10:10 a.m.) September 11, 2001). In some accounts, all three of them recollect hearing the first military jets overhead soon after the second tower’s collapse. (Kerik 2001, pp. 339-340; Giuliani 2002, pp. 14; 9/11 Commission 5/18/2004 pdf file) However, according to another account, Giuliani hears the first jet slightly earlier, at around 10:20 a.m. And, in his private testimony before the 9/11 Commission, Kerik claims to have heard a fighter jet coming when he was heading to the temporary command post on Barclay Street, i.e. shortly before 9:50 a.m. (Barrett and Collins 2006, pp. 348-349)
A few witnesses claim the fighters arrive earlier on, before the first collapse at 9:59 a.m.:
bullet Emergency medical technician Frank Puma and Port Authority Freedom of Information Administrator Cathy Pavelec say they see fighter jets overhead at unspecified times before the first collapse. (Puma 12/12/2001; Fink and Mathias 2002, pp. 68)
The fighter(s) are presumably the F-15s launched from Otis Air Force Base at 8:46 a.m. (see 8:46 a.m. September 11, 2001). However, the 9/11 Commission will claim that these arrived over Manhattan at 9:25 a.m. (see 9:25 a.m. September 11, 2001), which is significantly earlier than most of the witnesses on the ground recall.

A man who is on the 105th floor of the South Tower calls emergency 9-1-1 to report that floors below his location, “in the 90-something floor,” have collapsed. The 9-1-1 operator types a record of this call into the Special Police Radio Inquiry Network (SPRINT) data link, which will be passed on to the New York fire department’s Emergency Medical Service (EMS). It isn’t known when the call is made exactly, but the EMS Dispatch computer apparently receives the call record at this time. However, because it is classified as a “supplement message,” it is not yet read by anyone. The police dispatcher dealing with the area around the WTC also receives the call record, but misinterprets it as meaning that the floor the person is on has collapsed. EMS dispatchers are dealing with an enormous volume of calls as well as performing many other tasks under extreme pressure during the crisis, so a report later concludes that the EMS operators didn’t have the time to review the information before the collapse of the South Tower at 9:59 (see 9:59 a.m. September 11, 2001), and the fire chiefs never received the information. (New York City Fire Department 8/19/2002)

After spending about 40 minutes at the disaster scene, on the World Trade Center site, New York City Mayor Rudolph Giuliani relocates to a small office building at 75 Barclay Street, about two blocks from the WTC, hoping to establish a command post there. His usual command center, in WTC 7, was evacuated at around 9:30 a.m. (see (9:30 a.m.) September 11, 2001). With him are several colleagues, including Police Commissioner Bernard Kerik and Office of Emergency Management Director Richard Sheirer. (Kerik 2001, pp. 334; Giuliani 2002, pp. 10; 9/11 Commission 5/18/2004 pdf file; 9/11 Commission 5/19/2004; Barrett and Collins 2006, pp. 10) While at Barclay Street, Giuliani is able to get in touch with the White House, and speaks to Chris Henick, the deputy political director to President Bush (see 9:58 a.m. September 11, 2001). Immediately afterwards, he receives a phone call from Vice President Cheney, though this is cut off before either one is able to speak. Giuliani also claims he is given advance warning of the South Tower’s collapse while at this command post (see (Before 9:59 a.m.) September 11, 2001). After the South Tower collapses outside, Giuliani and his colleagues all decide to evacuate, going through the basement into a neighboring building, 100 Church Street. They will then leave this and head north, being joined by cameras and press. (Fink and Mathias 2002, pp. 112; 9/11 Commission 5/19/2004; Barrett and Collins 2006, pp. 348)

Joseph Morris.Joseph Morris. [Source: Publicity photo]Inspector Joseph Morris, a commanding officer with the Port Authority Police Department (PAPD), tells numerous PAPD officers to initially stay away from the Twin Towers after they arrive near the World Trade Center, thereby likely preventing many of them from being killed when the South Tower collapses. (Domash 9/1/2002; Law Officer 8/16/2011) Morris was in his office at New York’s La Guardia Airport when he heard someone yell out that an aircraft had crashed into the WTC. After turning on the television and seeing the images of the burning North Tower, he gave the order for all his available officers to go to the WTC. “I initiated a mobilization of personnel following long-held department plans and procedures for response to the World Trade Center for aircraft disasters and high-rise fires,” he will later describe. Morris and 17 colleagues head out and arrive in the vicinity of the WTC “maybe six to seven minutes” before the South Tower collapses, Morris will estimate, which would be at around 9:52 a.m. to 9:53 a.m. About 40 to 50 PAPD officers are at the location at this time and Morris is the highest-ranking commander among them. (Morris 1/2002; 9/11 Commission 11/10/2003; 9/11 Commission 5/18/2004 pdf file)
Officers Are Told to Stay Away from the WTC - The PAPD officers with Morris are keen to rush into the Twin Towers and get involved with the rescue operation. Normally, they would go to the lobby of the North Tower in an emergency like the current one. Morris, though, tells them to stay back while he assesses the situation. The decision is made for the officers to “break up into groups of three or four, with a supervisor,” and “get [their] bunker gear on,” Morris will say. He instructs them “not to go anywhere until I came up with a plan.” (Morris 1/2002; Domash 9/1/2002; Law Officer 8/16/2011)
Commander Thinks There May Be Few People Left to Rescue - Morris will say his caution about allowing PAPD officers into the Twin Towers at the current time is partly because he sees very few civilians coming his way up West Street and this leads him to question how many people are left at the WTC to be rescued. (9/11 Commission 11/10/2003) Some other Port Authority employees, in addition to the PAPD officers, are at the same location as Morris and Morris tells them, too, to stay away from the WTC. “I informed them they should stay at that location until more information was gathered for responses,” he will say. (9/11 Commission 5/18/2004 pdf file)
Commander's Decision Likely Saves Lives - Morris’s decision to keep PAPD officers away from the WTC will be credited with saving the lives of people who may have been killed when the South Tower collapsed, at 9:59 a.m. (see 9:59 a.m. September 11, 2001), if they had headed to the Twin Towers. Alan Reiss, director of the Port Authority’s World Trade Department, will say that in retrospect, he believes it “most certainly saved lives of at least some of those officers held back.” (9/11 Commission 11/3/2003) Law Officer magazine will describe it as a decision “that proved to be a lifesaver for many.” (Law Officer 8/16/2011) Police magazine will call it one of “a couple of key decisions” Morris makes “that saved his department even greater tragedy” today. (Domash 9/1/2002) A few minutes after arriving near the WTC, Morris will decide to head to the incident command post in the North Tower to meet with other professionals who are assembled there. He will be going toward it with Lieutenant Emiliano Sepulveda, a colleague of his, when the South Tower starts to come down. He will run north up West Street and then find protection inside the PAPD’s command bus. (9/11 Commission 11/10/2003; 9/11 Commission 5/18/2004 pdf file; Law Officer 8/16/2011)

Members of New York Police Department’s elite Emergency Service Unit (ESU) are given an order that means they have to get out of the World Trade Center or delay entering it and consequently many of them will avoid being killed when the South Tower collapses, at 9:59 a.m. (Keegan and Davis 2006, pp. 101-102; Appel 2009, pp. 112-113) The ESU is a highly trained organization comprised of first response rescuers. (City of New York 6/29/2002) Its members respond to situations that require the most specialized training, such as hostage taking and water rescue, and use the most advanced equipment. (Keegan and Davis 2006, pp. 101)
Officers Are Ordered to Come Down from the WTC - Inspector Ronald Wasson, commanding officer of the ESU, earlier on divided his officers into four teams of five or six men and then sent two teams into each of the Twin Towers to assist the rescue operation. (McPhee and O'Shaughnessy 11/11/2001) But now, ESU commanders give the order for the unit’s members to “go tactical.” This means the officers in the towers have to come out of the buildings and go to the unit’s SWAT (special weapons and tactics) vans; put on their BDU (battle dress uniform) suits, flak jackets, and Kevlar helmets; and arm themselves with heavy weapons and assault rifles.
Commander Thinks Terrorists Might Attack the First Responders - The decision to order ESU officers to go tactical is made by Wasson, according to a book by Lieutenant William Keegan of the Port Authority Police Department. (Keegan and Davis 2006, pp. 101-102) Wasson is currently assembled with a number of other ESU officers outside the Twin Towers, at the corner of West and Vesey Streets. (Appel 2009, pp. 68) He decides that ESU officers should go tactical due to his concern that armed terrorists might attack the first responders at the WTC. He is “worried that with all his personnel inside the buildings, he [has] no way to protect the cops, firefighters, or civilians from the kind of low-intensity warfare—snipers, automatic weapons, car bombs, hostage situations—he [is] sure [will] follow the attack,” Keegan will write. He believes it is the responsibility of the New York Fire Department to deal with the fires in the Twin Towers, while the Police Department should be preparing for what might happen next. Many ESU members will come out of the towers after receiving the order to go tactical, according to Keegan. (Keegan and Davis 2006, pp. 101-102)
Order Is Given after an Officer Hears of the Pentagon Attack - However, according to author Anthea Appel, the order to go tactical is made by Sergeant Tom Sullivan, another ESU officer. Sullivan is currently at the corner of West and Vesey Streets along with Wasson, getting ready to take two teams into the WTC. At 9:56 a.m., after hearing over his radio about the attack on the Pentagon, which occurred at 9:37 a.m. (see 9:37 a.m. September 11, 2001), he exclaims, “Screw rescue!” He then pulls his men back and announces that all ESU teams will be “going in tactical,” according to Appel. “I want heavy vests, helmets, rifles, and machine guns,” he says. In response to his announcement, ESU officers start taking off their rescue gear and putting on combat gear. They take off their safety helmets and replace them with ballistic helmets. They take off their air tanks, unbuckle their Roco harnesses, and put on more body armor over their bulletproof vests. They also unlock their gun bins and take out shotguns, submachine guns, and assault rifles. Some officers grumble under their breath, annoyed at being held back. “They didn’t like wasting time fiddling around with equipment,” Appel will comment, “and this sudden switch interrupted their adrenaline momentum.” They will be in the middle of changing into their combat gear when the South Tower collapses (see 9:59 a.m. September 11, 2001). (Appel 2009, pp. 112-113)
Order Is Wrong but Saves Lives - The order to go tactical will turn out to be mistaken as there are no attacks by armed terrorists on the first responders at the WTC. However, as a result of it being issued, numerous ESU members will be outside the Twin Towers instead of inside the buildings when the South Tower comes down and many of them will therefore avoid being killed in the collapse. While 14 ESU members will die in the WTC collapses, a far greater number will survive, Keegan will write, “because Wasson’s order pulled them out of the towers and saved their lives.” (Keegan and Davis 2006, pp. 102) One ESU member, Detective Frank DeMasi, will conclude that Sullivan “definitely saved his life when he made that last-minute decision to switch from rescue to tactical mode,” according to Appel, since the delay while they changed into their combat gear “kept DeMasi and his teammates from walking into the South Tower before it collapsed.” (Appel 2009, pp. 265-266)

According to New York City Mayor Rudolph Giuliani’s 9/11 Commission testimony in 2004, about one minute before the first WTC tower falls, he is able to reach the White House by phone. Speaking to Chris Henick, deputy political director to President Bush, Giuliani learns the Pentagon has been hit and he asks about fighter cover over New York City. Henick replies, “The jets were dispatched 12 minutes ago and they should be there very shortly, and they should be able to defend you against further attack.” (9/11 Commission 5/19/2004) If this is true, it means fighters scramble from the Otis base around 9:46 a.m., not at 8:52 a.m., as most other accounts have claimed. While Giuliani’s account may seem wildly off, it is consistent with reports shortly after 9/11. In the first few days, acting Joint Chiefs of Staff Chairman Richard Myers, and a NORAD spokesman, Marine Corps Major Mike Snyder, claimed no fighters were scrambled anywhere until after the Pentagon was hit. (US Congress 9/13/2001; Johnson 9/15/2001) This story only changed on the evening of September 14, 2001, when CBS reported, “contrary to early reports, US Air Force jets did get into the air on Tuesday while the attacks were under way.” (CBS News 9/14/2001)

The South Tower of the World Trade Center collapses.The South Tower of the World Trade Center collapses. [Source: Associated Press]The South Tower of the World Trade Center tilts to the southeast and then collapses. It was hit by Flight 175 at 9:03 a.m., 56 minutes earlier (see 9:03 a.m. September 11, 2001). (Washington Post 9/12/2001; New York Times 9/12/2001; MSNBC 9/22/2001; Cauchon 12/20/2001; Associated Press 8/21/2002; ABC News 9/11/2002; National Institute of Standards and Technology 9/2005, pp. 44) The first sign of the collapse is visible on floor 82. (National Institute of Standards and Technology 9/2005, pp. 87) The angle of the tilt will be disputed after 9/11 (see September-November 2005), as will the time it takes the towers to fall to the ground (see September 12, 2001-September 2005). (Ashley 10/9/2001; Eagar and Musso 12/2001; PBS Nova 5/2002; National Institute of Standards and Technology 8/30/2006)

The fire alarm system in World Trade Center Building 7 detects a possible fire somewhere in the building, although the exact location of this possible fire is not signified. The alarm system has been placed on “test condition,” which causes any alarms to be ignored, for a period of eight hours, beginning at 6:47 a.m. this morning (see 6:47 a.m.-2:47 p.m. September 11, 2001). (National Institute of Standards and Technology 6/2004, pp. 28) But less than two minutes after the South Tower collapsed (see 9:59 a.m. September 11, 2001), while it is in this condition, the system registers an alarm. This does not necessarily mean there is a fire in the building, however. “Even though a fire alarm is indicated,” a report by the National Institute of Standards and Technology (NIST) will later comment, “the record might have been the result of dust entering smoke detectors.” The alarm record will show that the fire condition occurs in “AREA 1.” However, NIST will be informed that AREA 1 is not a specific area within WTC 7, but instead refers to the entire building. This means that “a fire detected in any fire alarm zone in the building would have resulted in the same AREA 1 identification,” NIST will state. While the alarm system is in test condition, as is currently the case, records of an alarm are recorded in its history file but alarm signals do not appear on the operator’s display. And NIST will state that none of the interviews conducted by its investigation team, which examines the collapse of WTC 7, “contained any mention of an alarm received at the fire command station” in the building’s third-floor lobby. (National Institute of Standards and Technology 11/2008, pp. 68-70)

Rudy Washington.Rudy Washington. [Source: Congress of Racial Equality]After being caught in the dust plume when the WTC’s South Tower collapses at 9:59, Rudy Washington, who is one of Rudolph Giuliani’s deputy mayors, heads to City Hall, where he coordinates the city’s emergency response to the attacks. He is in contact with New York Governor George Pataki, high-ranking New York Police Department officers, and Navy Admiral Robert Natter, the commander of the US Atlantic Fleet (see (Shortly After 9:59 a.m.) September 11, 2001). He orders the closing of bridges. (Though, according to some accounts, the New York Port Authority ordered all bridges to be closed earlier on, at 9:21 (see 9:21 a.m. September 11, 2001).) As New York Daily News columnist Stanley Crouch later describes, Washington also finds “heavy machinery to get downtown for the cleanup and got the Navy to guard against a seaborne attack. He evacuated City Hall, which shook like crazy when the second tower fell. He gathered people who could give medical help, gave the order to find lights that could be used at Ground Zero and worked out new phone communications, since power was being lost. Accompanied by city engineers, he went into the streets around the fallen towers, testing the ground to make sure it would hold when the heavy equipment came in.” Washington’s efforts at developing an emergency strategy are reportedly aided by what he learned at an anti-terrorist training session chaired by counterterrorism “tsar” Richard Clarke and held at the WTC, in preparation for the millennium celebration (see (Late 1999)). Stanley Crouch later credits Rudy Washington with having “ran New York for the first few hours after the attack during a period when Giuliani was thought to have been killed inside the first building that went down.” (Crouch 5/20/2004) During the initial hours following the attacks, between around 9:50 a.m. and midday, Mayor Giuliani is moving around between a series of temporary command posts (see (9:50 a.m.-10:10 a.m.) September 11, 2001 and (After 10:28 a.m.-12:00 pm.) September 11, 2001).

Roger Cressey.Roger Cressey. [Source: Publicity photo]Roger Cressey, the deputy for counterterrorism on the National Security Council, suggests activating the Emergency Alert System (EAS) to address the nation, but no one with him knows what could be said to calm the public. (Graff 2017, pp. 341) Cressey is one of about a dozen people who remained in the White House Situation Room after most staffers evacuated from the White House (see (Shortly After 9:45 a.m.) September 11, 2001). (Clarke 2004, pp. 10; Gardham 9/10/2010) Apparently sometime shortly after Ralph Seigler, the Situation Room deputy director, reported that the Secret Service was saying a hostile aircraft was approaching Washington, DC (see (After 10:06 a.m.) September 11, 2001), Cressey proposes to his colleagues that they activate the EAS to give a message to the American public. However, Richard Clarke, the White House counterterrorism chief, promptly rejects his suggestion. “And have them say what?” Clarke asks. (Clarke 2004, pp. 9)
Alert System Is Not Used in Response to Today's Attacks - The EAS, known as the Emergency Broadcast System until the 1990s, was created in 1951 as part of America’s response to the threat of nuclear attack. It serves as a tool for the president and others to warn the American public about emergency situations. However, it is not activated at any point today in response to the terrorist attacks. Richard Rudman, chairman of the EAS National Advisory Committee, will later justify this, explaining that the EAS is intended to alert the public to the danger before an incident occurs, not afterward. “Some events really do serve as their own alerts and warnings,” he will comment. Referring to today’s attacks, he will say, “With the immediate live media coverage, the need for an EAS warning was lessened.” One broadcast engineer will say that activating the EAS after the first hijacked plane crashed into the World Trade Center (see 8:46 a.m. September 11, 2001) might have caused more harm than good. “At that point, it could have stirred up even more panic,” the engineer will say. (Stine 9/26/2001; Moore 8/13/2004, pp. 1 pdf file)

Flight 93 crashed in the Pennsylvania countryside. Resue vehicles arrive in the distance.Flight 93 crashed in the Pennsylvania countryside. Resue vehicles arrive in the distance. [Source: Keith Srakocic/ Associated Press]Flight 93 crashes into an empty field just north of the Somerset County Airport, about 80 miles southeast of Pittsburgh, 124 miles or 15 minutes from Washington, D.C. Presumably, hijackers Ziad Jarrah, Ahmed Alhaznawi, Ahmed Alnami, Saeed Alghamdi, and all the plane’s passengers are killed instantly. (CNN 9/12/2001; North American Aerospace Defense Command 9/18/2001; Ellison 10/17/2001; Hillston 10/28/2001; Levin, Adams, and Morrison 8/12/2002; Associated Press 8/21/2002; MSNBC 9/3/2002) The point of impact is a reclaimed coal mine, known locally as the Diamond T Mine, that was reportedly abandoned in 1996. (Pittsburgh Tribune-Review 9/12/2001; Zapinski 9/12/2001; Frederick 9/11/2002) Being “reclaimed” means the earth had been excavated down to the coal seam, the coal removed, and then the earth replaced and planted over. (Kashurba 2002, pp. 121) A US Army authorized seismic study times the crash at five seconds after 10:06 a.m. (Kim and Baum 2002 pdf file; Perlman 12/9/2002) As mentioned previously, the timing of this crash is disputed and it may well occur at 10:03 a.m., 10:07 a.m., or 10:10 a.m.

Dutchess County Airport.Dutchess County Airport. [Source: Phillip Capper]Tom White, a New York air traffic controller, incorrectly reports over an FAA teleconference that the first aircraft to hit the World Trade Center appears to have been a Sikorsky helicopter. (Federal Aviation Administration 9/11/2001; Federal Aviation Administration 1/2/2002; 9/11 Commission 5/21/2004) White is an operations manager at the FAA’s New York Terminal Radar Approach Control (TRACON) in Westbury, Long Island. (9/11 Commission 12/15/2003 pdf file) He says over the FAA teleconference that the Sikorsky helicopter had been heading south from Poughkeepsie, New York, and appeared to hit the WTC at 8:27 a.m. (see 8:27 a.m. September 11, 2001)—nearly 20 minutes before the first crash there actually took place (see 8:46 a.m. September 11, 2001).
TRACON Previously Said Small Plane Hit the WTC - About 20 minutes earlier, someone from the TRACON—presumably White—suggested over the teleconference that the first aircraft to hit the WTC was a small twin-engine plane. At around 9:55 a.m. they said: “I think we’ve identified the location of a departure point for aircraft number one [presumably a reference to the plane that hit the North Tower]. At approximately 12:03 Zulu time [i.e. 8:03 a.m. Eastern time], aircraft number one appears to have departed Poughkeepsie airport and established a southerly heading at a speed of about 160 knots [i.e. 184 miles per hour]. The profile looks like it might be a light twin.” Asked if they had any more information, the TRACON employee replied: “I tried to get in touch with Poughkeepsie tower. However, the phone lines are overloaded and the circuits are busy.” (Federal Aviation Administration 9/11/2001) The “Poughkeepsie airport” the helicopter took off from is presumably Dutchess County Airport. Sikorsky bases a fleet of its S-76 helicopters at Dutchess County Airport, which it dispatches to the New York metro areas as needed. (Venable 5/2000; Wagstaff 8/1/2003) Poughkeepsie is about 70 miles north of New York City. (Sherman 2/3/2008)
Radar Information Suggests Helicopter Hit WTC - White now gives an update over the FAA teleconference, and suggests the first aircraft to hit the WTC was in fact a helicopter. He says: “We tracked a Sikorsky helicopter… from Poughkeepsie to the Trade Center. It appeared to fly into the Trade Center at 12:27 [Zulu time, or 8:27 a.m. Eastern time]. That is preliminary information.” White then clarifies that this conclusion has been reached partly through replaying radar data. He says: “[T]he only target that we saw in the vicinity of the Trade Center at 12:27, to fly into the Trade Center, we, we played the radar and tracked it up through Westchester and Stewart. We had a departure off a Poughkeepsie at 12:03. The tower says the only thing they had southbound at that time was a Sikorsky helicopter, which is consistent with the speed that we followed it down.” (Federal Aviation Administration 9/11/2001; Federal Aviation Administration 9/11/2001)
Long Delay before False Information Is Corrected - The New York TRACON’s reports about a helicopter or small plane hitting the WTC are subsequently confirmed to be mistaken. However it apparently takes several hours before the erroneous information is corrected. David LaCates, the deputy operations manager at the FAA’s New York Center, will tell the 9/11 Commission that “he did hear rumors that the aircraft that struck the WTC was in fact a small airplane from Poughkeepsie,” and he “believes this rumor persisted for over an hour.” (9/11 Commission 10/2/2003 pdf file) According to one FAA chronology of this day’s events, it is only at 1:00 p.m. that the “Sikorsky helicopter” is “now believed not to have hit the WTC.” (Federal Aviation Administration 1/2/2002) Another FAA chronology will state that at 1:04 p.m. it is reported that the Sikorsky helicopter “landed 20 minutes early, normal GE run at 12:28Z [i.e. 8:28 a.m. Eastern time] to WTC.” (It is unclear what is meant by “normal GE run.”) (Federal Aviation Administration 9/11/2001)

The team studying the WTC collapses for the American Society of Civil Engineers (ASCE) and the Federal Emergency Management Agency (FEMA) will later observe that the antenna on WTC 1 began to fall before the exterior of the building: “Review of videotape recordings of the collapse taken from various angles indicates that the transmission tower on top of the structure began to move downward and laterally slightly before movement was evident at the exterior wall. This suggests that collapse began with one or more failures in the central core area of the building.” (Federal Emergency Management Agency 5/1/2002, pp. 2-27) In a program featuring some members of the FEMA/ASCE team, the BBC will comment: “The mast was directly supported by the tower’s inner core. The way it fell suggests it was failure of the inner core that began the collapse, whereas in the South Tower it had been the outer walls.” (BBC 3/7/2002)

FBI agents in New York quickly set up a temporary field office in an FBI parking garage, where they will be based for the next few weeks, after the attacks on the World Trade Center rendered their original office unusable. The New York office is the FBI’s largest field office, comprising some 1,100 special agents. It is located at 26 Federal Plaza, just a few blocks away from the WTC site. However, the collapses of the Twin Towers (see 9:59 a.m. September 11, 2001 and 10:28 a.m. September 11, 2001) disabled its telephone service, thereby rendering it useless. Officials are also concerned that 26 Federal Plaza might be the target of another terrorist attack.
New Facility Is Set Up in 24 Hours - Therefore, “Almost immediately” after the Twin Towers came down, according to the New York Times, the FBI starts relocating to a garage in Manhattan. The block-long, multilevel garage at 26th Street and the West Side Highway is usually used by the FBI to store and repair its fleet of vehicles. But within 24 hours of the attacks on the WTC, a temporary field office is up and running there. The facility is equipped with about 100 laptop computers. Three hundred phone lines are installed, with phones hooked up to a satellite truck positioned outside the garage.
Investigation Is Coordinated from the Temporary Facility - Officials from over two dozen federal, state, and local agencies are then based at the makeshift facility. Barry Mawn, director of the FBI’s New York office, and key federal prosecutors, including Mary Jo White, US Attorney for the Southern District of New York, coordinate the work of almost 2,000 investigators from there. The garage will serve as the command center for the first four weeks of the FBI’s investigation of the terrorist attacks. (Rashbaum 9/24/2001; Thompson 10/20/2001; Kessler 2002, pp. 5, 424; Garcia 3/2002 pdf file) It will be “New York’s nerve center for information about the attacks,” according to the Associated Press. (Associated Press 9/27/2001) Agents will move back to their original field office at 26 Federal Plaza early in October. (Thompson 10/20/2001)

Bernard Kerik.Bernard Kerik. [Source: Publicity photo]After leaving 75 Barclay Street (see (9:50 a.m.-10:10 a.m.) September 11, 2001), New York City Mayor Rudolph Giuliani and the group accompanying him search for somewhere to establish a new temporary headquarters. Soon after the North Tower’s collapse, they break into a vacant firehouse at the corner of Houston Street and Sixth Avenue. Police Commissioner Bernard Kerik, who is part of the group, wants the location kept secret. He gives out the order: “Okay, we’re going to establish a command center [here]. We’re not going to let anybody know. I don’t want it over the radio. We don’t know what’s happening. We don’t want them [presumably meaning the attackers] to know where we’re all going to be.” Giuliani is able to find a phone, and speaks with New York Governor George Pataki, the White House, and the Defense Department. At around 10:57 a.m., he speaks to the television channel New York 1 and offers a message of reassurance to the people of New York City. (Fink and Mathias 2002, pp. 108; Giuliani 2002, pp. 15-16; 9/11 Commission 5/19/2004; Barrett and Collins 2006, pp. 13) Deciding that they need to be somewhere larger and more secure, Kerik suggests they move to the Police Academy on East 20th Street. (Kerik 2001, pp. 342) Thus, Giuliani’s group—which now numbers more than 20 people plus a press contingent—gets into cars and drives to the academy, arriving there around midday (see (2:00 p.m.) September 11, 2001). (Giuliani 2002, pp. 18-19; Barrett and Collins 2006, pp. 13) This will remain as the city’s command center for several days, until it is replaced later in the week by a larger space at Pier 92 on the Hudson River. (Cohen 2/3/2003; 9/11 Commission 5/19/2004)

Venton Hollifield.Venton Hollifield. [Source: ABC News / Associated Press]A man who was found behaving suspiciously in the World Trade Center and arrested is passed on to the FBI, but the detective who arrested him is subsequently told to stay quiet about what has happened. (Appel 2009, pp. 174-175) Several officers belonging to New York Police Department’s Emergency Service Unit (ESU) encountered the suspicious man as they were making their way down the stairs of the North Tower of the WTC. The man, who looked Middle Eastern, behaved aggressively toward the ESU officers and so one of them, Detective Timothy Morley, arrested and handcuffed him (see (Between 10:00 a.m. and 10:25 a.m.) September 11, 2001). (Appel 2009, pp. 125-128)
Detective Headed out to Find the FBI - When the ESU officers reached the bottom of the North Tower, Morley told his colleagues, “I’m gonna take this guy and hand him over to the first FBI agent I see.” He then headed out with the suspicious man, accompanied by his colleague, Lieutenant Venton Hollifield, and a Port Authority Police Department (PAPD) sergeant who carried the man’s belongings. The men soon encountered Police Chief Allen Hale from Manhattan North. Hollifield told Hale about the man they were escorting and his strange behavior in the WTC. Some intelligence officers with Hale talked to Morley about the suspicious man and took notes.
Suspicious Man Tried to Pull Away When the North Tower Collapsed - When the North Tower started to collapse, at 10:28 a.m. (see 10:28 a.m. September 11, 2001), Morley and the PAPD sergeant grabbed their prisoner and tried to run with him for cover. But the man dug his heels into the ground and tried to pull away from them. Morley was eventually able to drag the man along and find protection behind a fire truck. (Appel 2009, pp. 131-133) Sometime after the collapse, Morley encountered Hale again. Surprised to see that Morley was still escorting the suspicious man, Hale fetched a van, and drove Morley and his prisoner to Stuyvesant High School, where the ESU has set up a command post.
FBI Agents Interview the Prisoner - Now, at the school, some FBI agents show up to debrief Morley’s prisoner and they take him to an office to do so. They also ask Morley to write down for them everything that has happened. After a time, the FBI agents decide they want to take the man to the Police Academy. Morley, Hale, the FBI agents, and the prisoner therefore go to the Police Academy, where Mayor Rudy Giuliani and Police Commissioner Bernard Kerik are now based (see (After 10:28 a.m.-12:00 pm.) September 11, 2001).
Unidentified Official Tells the Detective to Keep Quiet - After they arrive at the academy, the prisoner is taken away to be debriefed by some intelligence officers. Meanwhile, Hale walks over to Giuliani and talks to him. He apparently tells the mayor about how Morley came to arrest the suspicious man in the WTC, as Giuliani subsequently walks over to Morley, shakes his hand, and says to him, “Good job.” A police inspector nearby then approaches Morley and asks him why the mayor had been shaking his hand. Morley starts telling the inspector about his encounter with the suspicious man in the North Tower. However, before he finishes his account of what happened, a man who has been standing across from him and eavesdropping on the conversation steps forward and interrupts. The man is dressed in a dark suit and is presumably some kind of government agent. He says to Morley, “If you know what’s good for you, I wouldn’t repeat that story.” Morley is astonished. He asks the man who he is, but the man only replies, “Never mind who I am.” In his anger, Morley decides he will go and tell his story to Kerik. He enters the room where Kerik is seated, but is unable to get the police commissioner’s attention and eventually gives up his attempt to talk to him. (Appel 2009, pp. 173-176) The following day, the suspicious man that the ESU officers encountered in the WTC will have his arrest voided and be released from custody. (Appel 2009, pp. 339) Further details of who he is and what he was doing in the North Tower are unknown.

Two F-15 fighter jets from Otis Air National Guard Base, Massachusetts, patrol the airspace over New York, first assisting and then later replacing another pair of F-15s that arrived over the city earlier on. (9/11 Commission 10/14/2003 pdf file; Lehmert 9/11/2006; Richard 2010, pp. 25-26, 88) The two fighters belong to the 102nd Fighter Wing, and are piloted by Major Martin Richard and Major Robert Martyn. They took off from Otis Air Base at around 10:30 a.m. (see (Shortly After 10:30 a.m.) September 11, 2001) and have already intercepted a military cargo plane that was returning to the US from England (see (After 10:35 a.m.) September 11, 2001). (102nd Fighter Wing 2001; Allocco 10/2001 pdf file; 9/11 Commission 10/14/2003 pdf file; Richard 2010, pp. 18-20)
Fighters Directed toward New York - The fighters were flying southwest toward New York when their pilots received orders from NORAD’s Northeast Air Defense Sector (NEADS), instructing them to “continue southwest and set up a combat air patrol over bull’s-eye.” “Bull’s-eye”—the reference point from which all positional reporting originates—had been set as the location of the now-collapsed World Trade Center towers. The fighters therefore continued toward the city.
FAA's New York Center Does Not Respond to Communication - Richard and Martyn tried checking in with the FAA’s New York Center, but received no reply. NEADS therefore instructed them to instead check in with the FAA’s New York Terminal Radar Approach Control. As they were flying to New York, NEADS also told the two pilots that their mission was “to intercept, divert, or, if unsuccessful in those, to call them for authorization to shoot down” aircraft. Richard will later comment, “That certainly got our attention.” (102nd Fighter Wing 2001; Richard 2010, pp. 24)
Fighters Join Two Aircraft Already over New York - Two fighters that took off from Otis Air Base at 8:46 a.m. in response to the hijacked Flight 11 (see 8:46 a.m. September 11, 2001), piloted by Lieutenant Colonel Timothy Duffy and Major Daniel Nash, arrived over New York earlier in the morning (see 9:25 a.m. September 11, 2001 and (9:45 a.m.-10:45 a.m.) September 11, 2001) and established a combat air patrol over the city. (9/11 Commission 7/24/2004, pp. 20, 24; Viser 9/11/2005) Richard and Martyn arrive, joining these two fighters over New York, at approximately 11:00 a.m., Nash will say. (9/11 Commission 10/14/2003 pdf file)
Fighters Set Up a 'Point Defense' around New York - Martyn then calls Duffy over the radio. Referring to his own fighter by its call sign, Martyn says, “Panta one is on station at 15,000 feet.” Duffy instructs him, “Panta one, orbit over bull’s-eye and stand by.” Richard will describe the tactic the four fighters then employ, writing: “Duff decided to set up a point defense around the city.… Ground Zero was our reference point and the targets in the area were called out in reference to it.… Since we were flying in a void of actionable information, we decided that the most effective way to win this battle was to let the enemy come to us.” (Richard 2010, pp. 25-26) While Duffy and Nash fly about 10,000 feet above New York, Richard and Martyn fly at around 18,000 feet. (Nash 10/2/2002)
Fighters Intercept and Identify Aircraft - Richard will recall that he and Martyn “darted around the city, chasing down airliners, helicopters, and anything else in the air,” making sure that “everything in the air was visually identified, intercepted, and guided to land at the closest airfield.” (Richard 2010, pp. 36) They spend several hours identifying helicopters that have no flight plans and are heading for Ground Zero. Many of these helicopters belong to organizations that want to help, and are there to provide relief and aid. (102nd Fighter Wing 2001; Richard 2010, pp. 74) When necessary, the two fighters are able to refuel from a KC-135 tanker plane that is orbiting above them at 20,000 feet.
Fighters Replaced by Other Aircraft from Otis Air Base - After Duffy and Nash head back to Otis Air Base (see (2:15 p.m.) September 11, 2001), Richard and Martyn continue clearing the skies over New York and eastern New Jersey. Richard will describe the following few hours as “mostly boredom interspersed with moments of sheer terror.” (Richard 2010, pp. 72, 74, 88) Richard and Martyn finally return to Otis Air Base at around 6:00 p.m. (102nd Fighter Wing 2001) Another two F-15s belonging to the 102nd Fighter Wing take their place patrolling the airspace above New York. These fighters are flown by pilots that Richard will only refer to by their nicknames, “Psycho Davis” and “Doo Dah Ray.” These pilots participated, along with Richard, in a training mission over the Atlantic Ocean early this morning (see (9:00 a.m.-9:24 a.m.) September 11, 2001). (Richard 2010, pp. 88)

Allan Dodds Frank.Allan Dodds Frank. [Source: CNN]A CNN correspondent incorrectly suggests that a third skyscraper may have recently collapsed in New York. Reporting from Lower Manhattan, Allan Dodds Frank describes: “[J]ust two or three minutes ago there was yet another collapse or explosion. I’m now out of sight, a Good Samaritan has taken me in on Duane Street. But at a quarter to 11, there was another collapse or explosion following the 10:30 collapse of the second tower. And a firefighter who rushed by us estimated that 50 stories went down. The street filled with smoke. It was like a forest fire roaring down a canyon.” (CNN 9/11/2001) A third tower—the 47-story World Trade Center Building 7—does collapse on this day. It will not come down, however, until 5:20 in the afternoon (see (5:20 p.m.) September 11, 2001). (Powell 9/12/2001; Glanz 11/29/2001)

American Airlines issues a statement confirming that it has lost two of its aircraft in “tragic incidents this morning.” The statement identifies the aircraft as “Flight 11, a Boeing 767 en route from Boston to Los Angeles,” and “Flight 77, a Boeing 757 operating from Washington Dulles to Los Angeles.” The statement adds, “Because of the heightened security due to the nature of today’s events, American said it is working closely with US government authorities and will not release more information at this time.” (Associated Press 2001 pdf file; Associated Press 9/11/2001; CNN 9/12/2001) Flight 11 hit the North Tower of the World Trade Center at 8:46 a.m. (see 8:46 a.m. September 11, 2001) and Flight 77 hit the Pentagon at 9:37 a.m. (see 9:37 a.m. September 11, 2001). (9/11 Commission 6/17/2004)

At around 8:00 p.m., Afghanistan time (11:30 a.m., New York time), Taliban leader Mullah Omar allegedly says, “Things have gone much further than expected.” This is according to what the New Yorker will describe as “Afghan intelligence sources” who monitor the call. (It is unclear what “Afghan intelligence sources” means, since the Taliban control nearly all of Afghanistan at this time, but it could be a reference to Northern Alliance forces; the CIA gave them equipment to monitor the Taliban (see Winter 1999-March 2000).) Omar’s comment takes place over an hour after one of the World Trade Center towers collapsed, which means thousands have been killed in the attacks, not hundreds (see 9:59 a.m. September 11, 2001). An Afghan intelligence official will later say: “They were expecting a reaction. But they thought it would be a Clinton-type reaction. They didn’t anticipate the kind of revenge that occurred.” (Anderson 6/10/2002) The “Clinton-type reaction” presumably is a reference to the August 1998 missile strikes on Sudan and Afghanistan during the Clinton administration (see August 20, 1998).

An engineer at the World Trade Center site correctly predicts that WTC Building 7 is going to collapse. Deputy Chief Peter Hayden of the New York Fire Department will later recall: “We had our special operations people set up surveying instruments to monitor and see if there was any movement of [WTC 7]. We were concerned of the possibility of collapse of the building. And we had a discussion with one particular engineer there, and we asked him, if we allowed it to burn could we anticipate a collapse, and if so, how soon?” The engineer apparently predicts correctly that WTC 7 will collapse and also the time it will take before it comes down. Hayden will recall, “He said yes and he gave an approximate time of five to six hours, which was pretty much right on the money because the building collapsed about 5 o’clock that afternoon.” Hayden will not reveal the name of this engineer. (BBC 7/6/2008; Aegis Insurance Services, Inc. v. 7 World Trade Center Company, LP 12/4/2013 pdf file) WTC 7 will collapse at about 5:20 p.m. (see (5:20 p.m.) September 11, 2001), indicating that the engineer makes his prediction around midday or shortly after. (CNN 9/12/2001)

At some point during the afternoon of 9/11, WTC leaseholder Larry Silverstein receives a phone call from the Fire Department commander, where they discuss the state of Building 7 of the WTC complex. Silverstein will discuss this call in a PBS documentary broadcast in 2002, saying that he told the commander, “You know, we’ve had such terrible loss of life, maybe the smartest thing to do is pull it. And they made that decision to pull and then we watched the building collapse.” (PBS 9/10/2002) Some people suggest that by “pull it” Silverstein meant the deliberate demolition of the building. But a spokesman for Silverstein states that he was expressing “his view that the most important thing was to protect the safety of those firefighters, including, if necessary, to have them withdraw from the building.” (US Department of State 9/16/2005) Yet this claim is contradicted by some accounts, according to which firefighters decided early on not to attempt fighting the fires in WTC 7 (see After 10:28 a.m. September 11, 2001)(see (11:30 a.m.) September 11, 2001). According to Haaretz, “In the afternoon of September 11, the Fire Department informed him that the smaller 7 World Trade Center building, which he owned, was going to collapse.” (Leibovich-Dar 11/21/2001) Building 7 eventually collapses at around 5:20 in the afternoon (see (5:20 p.m.) September 11, 2001).

Barry Jennings, a City Housing Authority worker who had become trapped in World Trade Center Building 7, finds the building’s lobby in ruins as he is being rescued from it, and steps over what feels to him like dead bodies. (Dylan Avery 2007) After the first plane hit the WTC, Jennings had gone up to the emergency command center on the 23rd floor of WTC 7 along with Michael Hess, New York’s corporation counsel (see (Shortly Before 9:03 a.m.) September 11, 2001). (Associated Press 9/11/2001; Dylan Avery 2007) After heading down the stairs, the two men became trapped on the building’s eighth floor (see (Between 9:15 a.m. and 12:00 p.m.) September 11, 2001). Some time later, firefighters come into WTC 7 to help the two men out of the building. (UPN 9 9/11/2001; National Institute of Standards and Technology 9/2005, pp. 109-110)
Lobby Is 'Total Ruins' - According to Jennings, when he gets down to the lobby, he is astonished to find it totally ruined. In a 2007 interview he will recall: “[W]hen I came in there, the lobby had nice escalators. It was a huge lobby.” But reaching it again, he asks the firefighter who is escorting him, “Where are we?” and the firefighter answers, “This was the lobby.” Jennings finds this “unbelievable,” and says, “You gotta be kidding me.” He will describe the lobby as being “total ruins.”
'Stepping over People' - Furthermore, Jennings steps over what may be dead bodies in the lobby. He will say: “[T]he firefighter that took us down kept saying, ‘Do not look down,’ and I kept saying, ‘Why is that?’ [He said,] ‘Do not look down.’ And, stepping over people. And you know you could feel when you’re stepping over people.” (Dylan Avery 2007) Yet most people were evacuated from WTC 7 around 9:03 a.m., if not earlier (see (9:03 a.m.) September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 109) The very latest that people left the building, according to official accounts, was 9:30 a.m. (see (9:30 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 305) In a later interview, Jennings will clarify: “I never saw dead bodies.… [I]t felt like I was stepping over them but I never saw them.” The BBC will say, “There is no evidence that anyone died in Tower 7 on 9/11.” (BBC 7/4/2008; BBC 7/6/2008) According to the National Institute of Standards and Technology (NIST), firefighters lead Jennings and Hess out of WTC 7 at around 12:10 p.m. to 12:15 p.m. (see 12:10 p.m.-12:15 p.m. September 11, 2001). (National Institute of Standards and Technology 6/2004, pp. L-18)

Michael Hess.Michael Hess. [Source: Harvard Law Bulletin]While most of Building 7 of the World Trade Center was evacuated around the time the South Tower was hit, if not earlier (see (9:03 a.m.) September 11, 2001), firefighters now find three individuals who have become trapped inside it, and lead them out of the building. (National Institute of Standards and Technology 6/2004, pp. L-18; National Institute of Standards and Technology 9/2005, pp. 109-110) Among these individuals are Barry Jennings, a City Housing Authority worker, and Michael Hess, New York’s chief lawyer who is also a longtime friend of Mayor Rudolph Giuliani. The two had gone up to the 23rd floor emergency command center of the Mayor’s Office of Emergency Management after the first attack occurred, but found it empty (see (Shortly Before 9:03 a.m.) September 11, 2001). (Firestone 11/21/1997; Associated Press 9/11/2001; Giuliani 2002, pp. 20-21 and 244; Dylan Avery 2007) They then headed downstairs but became trapped around the eighth floor by smoke and debris that filled the staircase. After breaking a window and calling for help, they were spotted by firefighters outside. When the firefighters go in, they also find a security officer for one of the businesses based in the building, who is trapped on the seventh floor by the smoke in the stairway. This officer headed up the building after the South Tower collapsed at 9:59, to check that all his personnel had left there (see (Shortly After 9:59 a.m.-12:10 p.m.) September 11, 2001). All three men are escorted out of the building. (Penn State Public Broadcasting 3/1/2002; National Institute of Standards and Technology 6/2004, pp. L-18; National Institute of Standards and Technology 9/2005, pp. 110; National Institute of Standards and Technology 11/2008, pp. 298-299)

Richard Rotanz.Richard Rotanz. [Source: University of Delaware]Richard Rotanz, the deputy director of New York’s Office of Emergency Management, assesses the state of World Trade Center Building 7 and sees significant damage inside the building. (BBC 7/6/2008; BBC 10/17/2008) WTC 7 was damaged by the debris when the North Tower of the WTC collapsed at 10:28 a.m. (see 10:28 a.m. September 11, 2001). (National Institute of Standards and Technology 11/2008, pp. 16) At around 12:30 p.m., according to the BBC, Rotanz and some other officials—whose identities are unstated—go into WTC 7 to see what condition the building is in. “At the time the building wasn’t safe, but we had to make an assessment just the same,” Rotanz will later tell the BBC. He will describe what he observes inside WTC 7, saying: “You could hear the building creak above us. You could hear things fall. You could hear the fire burning. You could see columns just hanging from the floors, gaping holes in the floors up above us.” He also sees “an elevator car that was blown out of its shaft” and is now “down the hall.” (BBC 7/6/2008; BBC 10/17/2008) The elevator car is “30 or 40 feet away from where the elevator shaft once was,” according to another account. (Aegis Insurance Services, Inc. v. 7 World Trade Center Company, LP 12/4/2013 pdf file) Rotanz and those with him soon leave the building. “We didn’t spend that long” inside WTC 7, Rotanz will say. Rotanz has also observed significant damage to the exterior of WTC 7 (see (After 10:28 a.m.) September 11, 2001). (BBC 10/17/2008) At around 2:30 p.m., senior firefighters will make the decision to abandon the possibility of fighting the fires in WTC 7 (see (2:00 p.m.-2:30 p.m.) September 11, 2001). The building will collapse at around 5:20 p.m. (see (5:20 p.m.) September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 111)

The New York City Police Academy.The New York City Police Academy. [Source: Heather Holland / DNAinfo]New York City’s Office of Emergency Management (OEM) establishes an alternate Emergency Operations Center (EOC) at the New York City Police Academy. The OEM’s original EOC, on the 23rd floor of World Trade Center Building 7, was evacuated at around 9:30 a.m. due to a report that more commercial planes were unaccounted for (see (9:30 a.m.) September 11, 2001). (Rashbaum 9/17/2001; 9/11 Commission 5/18/2004 pdf file; 9/11 Commission 7/24/2004, pp. 305, 311) Since then, the OEM command bus has served as the office’s command post (see (Shortly After 9:30 a.m.) September 11, 2001). (9/11 Commission 4/7/2004)
Police Commissioner Recommended Going to the Police Academy - Following the collapse of the North Tower of the WTC, at 10:28 a.m. (see 10:28 a.m. September 11, 2001), Mayor Rudolph Giuliani and the officials with him considered where to set up their operations. After they spent some time at a firehouse (see (After 10:28 a.m.-12:00 pm.) September 11, 2001), Police Commissioner Bernard Kerik recommended they use the Police Academy as their command center since, he will later recall, it is “a centrally located building of modest height and design, and an unlikely target if the terrorists should strike again.” Additionally, it has “phones and meeting rooms, and could be secured easily.” Consequently, the academy, on East 20th Street, was selected as the new location for the EOC. (Kerik 2001, pp. 340-342; 9/11 Commission 4/6/2004; 9/11 Commission 5/19/2004) Giuliani and his entourage arrived there at around midday and were soon at work, planning the city’s response to the terrorist attacks. (Giuliani 2002, pp. 19)
New Operations Center Is Activated Early in the Afternoon - Meanwhile, the New York Police Department and the OEM set up the new EOC in the library at the academy. In the space of around two and a half hours, the facility is fully operational, with phone lines and computers available, and spaces for at least 30 agencies. (9/11 Commission 5/18/2004 pdf file) It is activated at around 2:00 p.m., according to a report by Tricia Wachtendorf of the Disaster Research Center at the University of Delaware. (Wachtendorf 2004, pp. 76)
Phones and Computers Keep Going Down - OEM personnel promptly get to work, in collaboration with other agencies, on the logistics of the rescue operation. Among other things, they set about ordering supplies and equipment for the rescue effort, determining where and how they can move in trucks and heavy machinery, and developing plans for how to move and where to locate the steel and debris from the WTC site. (9/11 Commission 5/18/2004 pdf file) However, they experience problems as they try to carry out their operations. “The phones kept going down, the little computer network we jerry-rigged kept going down, so everything had to be done with pen and paper,” Henry Jackson, deputy director for administration at the OEM who is responsible for setting up the temporary facility, will complain. The EOC will be located at the Police Academy until September 14, when it will move to a larger space at Pier 92 on the Hudson River. (Griscom 10/15/2001; ArcNews 12/2001; 9/11 Commission 5/19/2004)

Dina Corsi.Dina Corsi. [Source: FBI]A number of FBI agents in New York are told the names of some suspected hijackers during a conference call with FBI headquarters in Washington, DC, and one of the agents, Steve Bongardt, is enraged when he recognizes one of these men, Khalid Almihdhar, as someone the FBI has been investigating. Most agents from the FBI’s New York office have assembled at a temporary field office at 26th Street and the West Side Highway (see After 10:28 a.m. September 11, 2001). But members of the FBI’s I-49 squad, which is focused on Osama bin Laden and al-Qaeda’s central command, have returned to their office at 290 Broadway. Three of them now participate in a conference call with FBI headquarters. Along with Bongardt, Kenneth Maxwell, the agent in charge of counterterrorism in New York, and John Liguori, a supervisor at the New York office, are on the call. Those at headquarters who are on it include Michael Rolince, head of the FBI’s international terrorism operations section, supervisor Rod Middleton, and analyst Dina Corsi. Maxwell begins the discussion, asking: “What do we know? Do we recognize any of the hijacker names?” Corsi says they have some names of suspected hijackers and starts reading these out. When she mentions Almihdhar, Bongardt interrupts her, asking: “Khalid Almihdhar? The same one you told us about? He’s on the list?” (Graff 2011, pp. 313; Soufan 2011, pp. 290-291) “This is the same Almihdhar we’ve been talking about for three months!” he yells angrily. (Eggen and Priest 9/21/2002) “Steve, we did everything by the book,” Middleton explains. “I hope that makes you feel better; tens of thousands are dead!” Bongardt retorts. Maxwell then tries to calm his colleague down. He presses the mute button on the phone and tells Bongardt: “Now is not the time for this. There will be a time, but not now.” (Graff 2011, pp. 313; Soufan 2011, pp. 290-291) Sometime tonight, Bongardt will submit a request to the FBI information center. “Within hours,” he will later recall, the center gets back to him after finding Almihdhar’s address in San Diego, California, simply through searching “public resources.” (US Congress. Senate. Committee on Intelligence 9/20/2002)


Several small fires burn inside World Trade Center Building 7.
Several small fires burn inside World Trade Center Building 7. [Source: New York City Police Department]World Trade Center Building 7 is reported to be on fire. (CNN 9/12/2001)

Building 7 of the World Trade Center, located across the street from the Twin Towers, caught fire after the initial attacks on the WTC. (McMillan 9/12/2001) By 4:10 in the afternoon, CNN had reported it being on fire (see 4:10 p.m. September 11, 2001). Subsequently it is reported that WTC 7 is in danger of collapsing or may have already collapsed. At around 4:15 p.m., CNN reports, “We’re getting information that one of the other buildings… Building 7… is on fire and has either collapsed or is collapsing… now we’re told there is a fire there and that the building may collapse as well.” About 12 minutes later, BBC reporter Greg Barrow, who is in New York, appears on the BBC radio channel Five Live and says, “We are hearing reports from local media that another building may have caught light and is in danger of collapse.” He adds, “I’m not sure if it has yet collapsed but the report we have is talking about Building 7.” Around this time, the area around Building 7 is being evacuated, apparently because senior firefighters have determined it is in danger of collapsing (see (4:30 p.m.) September 11, 2001). At 4:53, based on the earlier reports, the Radio Five Live show’s presenter will incorrectly claim that Building 7 has already collapsed, saying, “Twenty-five minutes ago we had reports from Greg Barrow that another large building has collapsed just over an hour ago.” (Porter 3/2/2007) Starting at 4:54, BBC television will also begin reporting that Building 7 has already collapsed (see 4:54 p.m.-5:10 p.m. September 11, 2001). In fact, it does not do so until 5:20 (see (5:20 p.m.) September 11, 2001).

According to numerous rescue and recovery workers, the area around World Trade Center Building 7 is evacuated at this time. (Hayes 3/28/2004) For example:
bullet Emergency medical technician Joseph Fortis says, “They pulled us all back at the time, almost about an hour before it, because they were sure—they knew it was going to come down, but they weren’t sure.” (Fortis 11/9/2001)
bullet Firefighter Edward Kennedy says, “I remember [Chief Visconti] screaming about 7, No. 7, that they wanted everybody away from 7 because 7 was definitely going to collapse.” (Kennedy 1/17/2002)
bullet Firefighter Vincent Massa: “They were concerned about seven coming down, and they kept changing us, establishing a collapse zone and backing us up.” (Massa 12/4/2001)
bullet Firefighter Tiernach Cassidy: “[B]uilding seven was in eminent collapse. They blew the horns. They said everyone clear the area until we got that last civilian out.” (Cassidy 12/30/2001)
bullet Battalion Fire Chief John Norman: “I was detailed to make sure the collapse zone for 7 WTC had been set up and was being maintained.” (Norman 10/2002)
Several New York Fire Department chief officers, who have surveyed Building 7, have apparently determined it is in danger of collapsing. (Fire Engineering 9/2002) For example, Fire Chief Daniel Nigro explains their decision-making process, saying: “A number of fire officers and companies assessed the damage to the building. The appraisals indicated that the building’s integrity was in serious doubt. I issued the orders to pull back the firefighters and define the collapse zone.” (Nigro 9/2002) Fire Chief Frank Fellini says, “We were concerned that the fires on several floors and the missing steel would result in the building collapsing.” (Fellini 12/3/2001) And Fire Captain Ray Goldbach says, “[W]e made a decision to take all of our units out of 7 World Trade Center because there was a potential for collapse.” (Goldbach 10/24/2001) However, some firefighters seem surprised at this decision. When Fire Commissioner Thomas Von Essen is making his way through hundreds of firefighters who are being held away from the WTC site, he hears complaints like, “It could take days for that building to come down,” and, “Why don’t they let us in there?” (Essen 2002, pp. 45) When Deputy Fire Chief Nick Visconti is instructing firefighters to evacuate the area, one comment he receives is, “[O]h, that building is never coming down, that didn’t get hit by a plane, why isn’t somebody in there putting the fire out?” (Visconti 9/9/2002)

The BBC’s Jane Standley, reporting the collapse of WTC 7 while it is visible still standing behind her.The BBC’s Jane Standley, reporting the collapse of WTC 7 while it is visible still standing behind her. [Source: BBC]Several times, the BBC reports that Building 7 of the World Trade Center has collapsed, when it is in fact still standing. At 4:54 p.m., its domestic television news channel, BBC News 24, reports, “We’re now being told that yet another enormous building has collapsed… it is the 47-story Salomon Brothers building [i.e. WTC 7].” Three minutes later, its international channel, BBC World, reports, “We’ve got some news just coming in actually that the Salomon brothers building in New York right in the heart of Manhattan has also collapsed.” Then, at about 5:10 p.m., BBC World repeats the claim: “I was talking a few moments ago about the Salomon building collapsing and indeed it has… it seems this wasn’t the result of a new attack but because the building had been weakened during this morning’s attack.” Yet WTC 7 does not collapse until 5:20 p.m., over 25 minutes after the BBC first reported it (see (5:20 p.m.) September 11, 2001). The BBC’s live shot even shows the building still standing in the background, while its collapse is being reported. When these reports come to light early in 2007, Richard Porter, the head of news for BBC World, will suggest the error was due to the “confusing and chaotic situation on the ground” on 9/11. (Porter 3/2/2007) Starting around 4:15 p.m., CNN and other news outlets had been reporting that WTC 7 was in danger of collapsing or may already have collapsed (see (4:15 p.m.-4:27 p.m.) September 11, 2001).

A four-image progression of photos showing World Trade Center Building 7 collapsing down into its footprint.A four-image progression of photos showing World Trade Center Building 7 collapsing down into its footprint. [Source: unknown] (click image to enlarge)Building 7 of the World Trade Center complex, a 47-story tower, collapses. No one is killed. (CNN 9/12/2001; Washington Post 9/12/2001; MSNBC 9/22/2001; Associated Press 8/21/2002) It collapses in 6.6 seconds, which is just 0.6 of a second longer than it would have taken a free-falling object dropped from its roof to hit the ground. (Jarvik 11/10/2005) Many questions will arise over the cause of its collapse in the coming months and years. Building 7, which was not hit by an airplane, is the first modern, steel-reinforced high-rise to collapse because of fire. (Glanz 11/29/2001; Shwartz 12/5/2001; Glanz and Lipton 3/2/2002) Some will later suggest that the diesel fuel stored in several tanks on the premises may have contributed to the building’s collapse. The building contained a 6,000-gallon tank between its first and second floors and another four tanks, holding as much as 36,000 gallons, below ground level. There were also three smaller tanks on higher floors. (Glanz 11/29/2001; Glanz and Lipton 3/2/2002; Rice 3/25/2002; Federal Emergency Management Agency 5/1/2002, pp. 1-17) However, the cause of the collapse is uncertain. A 2002 government report will conclude: “The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown at this time. Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis has only a low probability of occurrence.” (Federal Emergency Management Agency 5/1/2002, pp. 1-17) Some reports indicate that the building may have been deliberately destroyed. Shortly after the collapse, CBS News anchor Dan Rather comments that the collapse is “reminiscent of… when a building was deliberately destroyed by well-placed dynamite to knock it down.” (CBS News 9/11/2001) And moments after the collapse, MSNBC’s Brian Williams joins David Restuccio, an FDNY lieutenant, by phone to ask him about the collapse. “You guys knew this was coming all day?” asks Williams. Restuccio replies: “We had heard reports that the building was unstable, and that it would eventually need to come down on its own, or it would be taken down. I would imagine it came down on its own.” Restuccio does not explain what he means by “it would be taken down.” (MSNBC 9/11/2001)

W. Gene Corley.W. Gene Corley. [Source: ASCE]The Federal Emergency Management Agency (FEMA) and its contractor, Greenhorne and O’Mara, Inc., from Greenbelt, Maryland, begin putting together a Building Performance Assessment Team (BPAT), to conduct a formal analysis of the World Trade Center collapses, and produce a report of its findings. FEMA routinely deploys such teams following disasters, like floods or hurricanes. The 23-member BPAT team set up at the WTC collapse site is assembled by the American Society of Civil Engineers (ASCE), and headed by Dr. W. Gene Corley of Construction Technologies Laboratories in Skokie, Illinois. Corley was previously the principal investigator for FEMA’s study of the Murrah Building, in Oklahoma City in 1995. (Seabrook 11/12/2001) BPAT team members are based nationwide and have to communicate with each other mostly by phone, as they continue with their regular jobs. While some of them are being paid for their efforts, others are working on the investigation voluntarily. They are told not to speak with reporters, under threat of dismissal from the team, supposedly because of the delicacy of the subject with which they are dealing. The BPAT team receives $600,000 of funding from FEMA, plus approximately $500,000 in ASCE in-kind contributions. (Glanz and Lipton 12/25/2001; Kugler 1/14/2002; US Congress 3/6/2002) The team will have great difficulty accessing the collapse site and evidence they want to see (see March 6, 2002). They will be unable to get FEMA to obtain such basic data as detailed blueprints of the WTC buildings. FEMA will also refuse to allow them to make appeals to the public for photos and videos of the towers that might aid their investigation. Bureaucratic restrictions will often prevent them from making forensic inspections at Ground Zero, interviewing witnesses, or getting important evidence, like recorded distress calls from people who were trapped in the towers. (Glanz and Lipton 2004, pp. 330) The end product of their investigation is the FEMA World Trade Center Building Performance Study, released in May 2002 (see May 1, 2002).

Carl Levin.Carl Levin. [Source: Publicity photo]Air Force General Richard Myers is questioned about the US military’s response to the 9/11 attacks when he appears before the Senate Armed Services Committee for his confirmation hearing as chairman of the Joint Chiefs of Staff, but his answers are vague and confused, and he claims, incorrectly, that no fighter jets were scrambled in response to the hijackings until after the Pentagon was hit. (Shenon 2008, pp. 119; Farmer 2009, pp. 241-243) Myers has been the vice chairman of the Joint Chiefs of Staff since March 2000. (US Air Force 9/2005) With General Henry Shelton, the chairman of the Joint Chiefs of Staff, flying toward Europe on the morning of September 11 (see (8:50 a.m.-10:00 a.m.) September 11, 2001), he served as the acting chairman of the Joint Chiefs of Staff during the 9/11 attacks. (Myers 2009, pp. 10; Shelton, Levinson, and McConnell 2010, pp. 431-433)
Myers Says Fighters Were Only Scrambled after the Pentagon Attack - During the hearing, Senator Carl Levin (D-MI) asks if the Department of Defense was contacted by “the FAA or the FBI or any other agency” after the first two hijacked aircraft crashed into the World Trade Center, at 8:46 a.m. and 9:03 a.m. (see 8:46 a.m. September 11, 2001 and 9:03 a.m. September 11, 2001), but before 9:37 a.m., when the Pentagon was hit (see 9:37 a.m. September 11, 2001). Myers replies, “I don’t know the answer to that question.” Levin then asks if the military was “asked to take action against any specific aircraft” during the attacks. Myers answers, “When it became clear what the threat was, we did scramble fighter aircraft, AWACS, radar aircraft, and tanker aircraft to begin to establish orbits in case other aircraft showed up in the FAA system that were hijacked.” Myers elaborates later in the hearing, telling Senator Bill Nelson (D-FL): “[A]fter the second tower was hit, I spoke to the commander of NORAD, General [Ralph] Eberhart (see (9:37 a.m.) September 11, 2001). And at that point, I think the decision was at that point to start launching aircraft.” But he tells Levin that “to the best of my knowledge,” the order to scramble fighters was only given “after the Pentagon was struck.”
Flight 93 Was Not Shot Down, Myers Says - Myers addresses the military’s response to Flight 93, the fourth hijacked plane, which crashed in a field in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). He says: “[I]f my memory serves me… we had launched on the one that eventually crashed in Pennsylvania. I mean, we had gotten somebody close to it, as I recall.” However, he adds, “I’ll have to check that out.” When Levin mentions that there have been “statements that the aircraft that crashed in Pennsylvania was shot down,” Myers responds, “[T]he armed forces did not shoot down any aircraft.” He says, “[W]e never actually had to use force.” Although Myers appears unclear about when the North American Aerospace Defense Command (NORAD) launched fighters in response to the hijackings, he is more confident when he states: “At the time of the first impact on the World Trade Center, we stood up our Crisis Action Team. That was done immediately. So we stood it up. And we started talking to the federal agencies.” (US Congress 9/13/2001)
NORAD and the 9/11 Commission Contradict Myers's Account - Myers’s claim that fighters were only launched in response to the hijackings after the Pentagon was hit will later be contradicted by the accounts of NORAD and the 9/11 Commission, which state that fighters were ordered to take off from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001) and from Langley Air Force Base in Virginia at 9:24 a.m. (see 9:24 a.m. September 11, 2001). (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 20, 27) The 9/11 Commission will also contradict Myers’s claim that the military launched fighters in response to Flight 93 and “had gotten somebody close to it.” “By the time the military learned about the flight,” the 9/11 Commission Report will state, “it had crashed.” (9/11 Commission 7/24/2004, pp. 34)
Myers's Testimony Prompts Criticism in the Media - Journalist and author Philip Shenon will question why Myers, a veteran Air Force fighter pilot, would give such an inaccurate account of the military’s response to the 9/11 attacks during the hearing. “It seemed obvious that Myers, of all people at the Pentagon, would want to know—would demand to know—how jet fighters under NORAD’s control had responded on the morning of September 11 to the threat in the skies,” he will write. (US Congress 9/13/2001; Shenon 2008, pp. 119) John Farmer, the senior counsel to the 9/11 Commission, will comment that “Myers’s evident confusion about precisely what had occurred prompted criticism in the media and a quick, if contradictory, response from the administration.” (Farmer 2009, pp. 243) Major General Paul Weaver, director of the Air National Guard, will provide a more detailed account of the military’s response to the hijackings in an “impromptu hallway interview” at the Pentagon on September 14 (see September 14, 2001). (Whittle 9/14/2001) And four days later, NORAD will release a timeline of its response to the hijackings (see September 18, 2001). (North American Aerospace Defense Command 9/18/2001)

The American Society of Civil Engineers (ASCE) studies the crash of Flight 77 into the Pentagon and the building’s architectural response to the impact, blast, and subsequent fires. (American Society of Civil Engineers 1/17/2003) The six-member Pentagon Building Performance Study team is headed by Lead Technical Director Paul F. Mlakar, and also includes Mete A. Sozen. Mlakar and Sozen had previously worked together on the Federal Emergency Management Agency (FEMA) investigation into the Oklahoma City bombing under W. Gene Corley, who is now assigned as FEMA/ASCE’s team leader for the World Trade Center investigation (see September 12, 2001). (Corley et al. 10/1997; Mlakar et al. 1/2003, pp. i pdf file) Some aspects of the Oklahoma City investigation were controversial. (Ronson 5/5/2001) Sozen is also tasked with “project conception” for Purdue University’s computer simulation of the Pentagon attack, images from which are also used in the Performance Report, when it is issued later (see January 23, 2003). (Purdue University Department of Computer Science 9/11/2002) The Building Performance Study team only inspects the Pentagon on two occasions. Team leader Mlakar is granted “limited access” to the site for a week from September 14-21, and on October 4, “controlled access” is granted to the full team, which meets with Corley and inspects the site “for approximately four hours.” All airplane debris has been removed by this time, as well as most of the loose debris from the impact and collapse. Along with interviews and technical information provided by the Pentagon Renovation Project, the photos and data gleaned on these visits are the basis of the team’s analysis of the building’s response to the impact of Flight 77. The study is completed in April 2002, though the report will not be released for another nine months. (Mlakar et al. 1/2003, pp. 1, 18 pdf file)

The “exit hole” in an inner wall of the Pentagon.The “exit hole” in an inner wall of the Pentagon. [Source: Public domain]Various explanations are offered for the “exit hole” that appeared in an internal wall in the Pentagon following the attack on 9/11 (see May 3, 2002):
bullet As the hole is near the end of the plane’s trajectory through the building, it is suggested it was made by a piece of the plane. Pentagon Renovation Program spokesman Lee Evey explains on September 15, “the nose of the plane just barely broke through the inside of the C Ring, so it was extending into A-E Drive a little bit.” (US Department of Defense 9/15/2001)
bullet Eleven days later, another military source claims that an engine of the plane was responsible for creating the hole. (Orme 9/26/2001)
bullet Photos, video, and some eyewitness accounts agree on landing gear elements at or near the hole, indicating one of the three sets of landing gear may have been responsible. Sergeant First Class Reginald Powell recalls seeing “a big 8 by 10… hole in the wall. You could see the tire, the landing gear, were just forward of it.” (Office of Medical History 9/2004, pp. 118) The book Debunking 9/11 Myths by Popular Mechanics magazine will say in 2006 that the density of the landing gear means it was “responsible for puncturing the wall in Ring C.” The book cites Air Force Surgeon General Paul Carlton Jr. and Paul Mlakar, lead author of the American Society of Civil Engineers’ (ASCE) Pentagon Building Performance Report, who says “he saw the landing gear with his own eyes.” (Dunbar and Reagan 2006, pp. 70) A wheel hub is found outside the hole in the A-E Drive service roadway and photographed there. (Jeff Scott and Joe Yoon 1/21/2007)
bullet Another theory put forth in a 2004 National Geographic program is that reverberating shockwaves from the plane’s impact were responsible for the hole. (National Geographic Channel 2004)
bullet Shortly after the attack, rescue workers reportedly “punched a hole” somewhere in the Pentagon “to clean it out,” although there are no sources that say that this was the reason for the hole to the A-E Drive. (US Department of Defense 9/15/2001) Some accounts refer to the hole as a ‘punch out’ hole, due to the words “punch out” spray painted near it after 9/11. (Mlakar et al. 1/2003, pp. 30 pdf file) However, punch out appears to be a construction term referring to a list of problems to be corrected. In this case it may be a call for assessment of the damage inside. (Home Building Manual 8/25/2007)
bullet French author Thierry Meyssan claims that the unusual nature and shape of the hole indicates it was made by a missile, not an airliner (see Early March 2002). (Meyssan 2002, pp. 55-63)
bullet The 2008 book Firefight: Inside the Battle to Save the Pentagon on 9/11, by Patrick Creed and Rick Newman, will offer a description of the hole and how it was created that is strikingly similar to Meyssan’s earlier observations but without questioning the official account that Flight 77 crashed into the building. In its photo-insert, the book shows a photograph of the exit hole and comments: “The ‘punch-out’ hole blown into a wall where Flight 77 finally came to rest. The hole was created by explosive energy; the plane’s soft aluminum nose and fuselage crumpled the instant it struck the building.” The book also says in its description of the crash, “The 182,000-pound aircraft was morphing into an enormous mass of energy and matter, plowing forward like a horizontal volcanic eruption.” It continues, “As the mass traveled through the building, it began to resemble a shaped charge, a form of explosive that funnels its force into a small, directed area—like a beam of energy—in order to punch holes through armor or other strong material.” (Creed and Newman 2008, pp. 27)
In addition, the ASCE team’s photo of the hole, and its assessment of the damaged support columns nearest to it, are provided by the FBI, suggesting the bureau has special jurisdiction at the exit hole. (Mlakar et al. 1/2003, pp. 30 pdf file)

Thermal hot spots detected by satellite on September 16, 2001. Red and orange indicate the hottest locations. The World Trade Center Twin Towers footprint is in the lower center and the center of World Trade Center Building 7 is in the upper right.
Thermal hot spots detected by satellite on September 16, 2001. Red and orange indicate the hottest locations. The World Trade Center Twin Towers footprint is in the lower center and the center of World Trade Center Building 7 is in the upper right. [Source: USGS]In response to requests from the Environmental Protection Agency, through the US Geological Survey, NASA flies a plane over the site of the WTC complex, equipped with a remote sensing instrument called AVIRIS. AVIRIS is able to remotely record the near-infrared signature of heat. Analysis of the data it collects indicates temperatures at Ground Zero of above 800 degrees Fahrenheit, with some areas above 1,300 degrees. On September 16, dozens of “hot spots” are seen, but by September 23, only four or five remain. (US Geological Survey 11/27/2001; US Geological Survey 10/2002 pdf file) Robert Shaler, the scientist who leads the forensic examination by the New York City medical examiner’s office to identify 9/11 victims, later will state that the “DNA in the bodies” of WTC victims “was in pretty bad shape. These bones were exposed to extreme temperatures.” (Mulrine 12/5/2005) Don Carson, a hazardous materials expert, later will say, “There are pieces of steel being pulled out [of the WTC rubble] that are still cherry red. It’s like the charcoal that you put in your grill.… You light it and it stays hot.” (Gittrich 11/1/2001) And Dr. Jonathan Barnett, a member of FEMA’s WTC investigation team, will describe steel members in the debris pile that appear to have been partly evaporated in extremely high temperatures. (Glanz 11/29/2001) Despite the WTC rubble being pumped with an almost constant jet of water, eventually totaling thousands of gallons, almost 12 weeks after 9/11 at least one fire is still burning, making it the longest-burning structural fire in history. (Beard 12/3/2001; CBS News 12/19/2001) As well as the hot spots, numerous witnesses describe molten metal being found at Ground Zero (see September 12, 2001-February 2002).

The North American Aerospace Defense Command (NORAD) releases a chronology of the events of September 11 and its response to the terrorist attacks that day, but the accuracy of this account will later be challenged by the 9/11 Commission. (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/24/2004, pp. 34; 9/11 Commission 7/29/2004)
NORAD Learned of First Hijackings Too Late to Defend the WTC - The chronology provides the times at which NORAD’s Northeast Air Defense Sector (NEADS) was alerted to the hijackings and when fighter jets were scrambled in response to the hijackings. It states that the Federal Aviation Administration (FAA) notified NEADS about Flight 11, the first hijacked aircraft, at 8:40 a.m. In response, the order was given to scramble two F-15 fighters from Otis Air National Guard Base in Cape Cod, Massachusetts, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), the same time that Flight 11 crashed into the World Trade Center (see 8:46 a.m. September 11, 2001), and the fighters were airborne at 8:52 a.m. (see 8:53 a.m. September 11, 2001). The FAA notified NEADS about Flight 175, the second hijacked aircraft, at 8:43 a.m., according to the chronology. When Flight 175 crashed into the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001), the chronology states, the Otis fighters were 71 miles away from New York.
Fighters Were Scrambled in Response to Flight 77 Hijacking - NEADS was alerted to Flight 77, the third hijacked aircraft, at 9:24 a.m., according to the chronology. In response, the order was given to scramble two F-16 fighters from Langley Air Force Base in Virginia (see 9:24 a.m. September 11, 2001) and these were airborne at 9:30 a.m. (see (9:25 a.m.-9:30 a.m.) September 11, 2001). But the F-16s were 105 miles from the Pentagon when it was hit at 9:37 a.m. (see 9:37 a.m. September 11, 2001). Regarding the fourth hijacked aircraft, Flight 93, the chronology gives “N/A” as the time the FAA alerted NEADS, but it also states that the FAA and NEADS discussed the flight on “a line of open communication.” At 10:03 a.m., when Flight 93 crashed in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001), the chronology states, the F-16s launched from Langley Air Force Base in response to the hijacking of Flight 77 were “in place to protect DC.” (North American Aerospace Defense Command 9/18/2001)
9/11 Commission Disputes NORAD's Account - The 9/11 Commission Report, released in 2004, will highlight what it says are inaccuracies in NORAD’s timeline of the events of September 11. It will state that NORAD’s claim that NEADS was alerted to Flight 77 at 9:24 a.m. was incorrect. The notice NEADS received at that time, according to the report, was the incorrect claim that Flight 11 “had not hit the World Trade Center and was heading for Washington, DC” (see 9:21 a.m. September 11, 2001). “NEADS never received notice that American 77 was hijacked,” the report will state. “It was notified at 9:34 that American 77 was lost (see 9:34 a.m. September 11, 2001). Then, minutes later, NEADS was told that an unknown plane was six miles southwest of the White House” (see 9:36 a.m. September 11, 2001). The report will state that NORAD’s claim that the Langley fighters were scrambled in response to the notification about Flight 77 is also incorrect. Instead, it will state, the fighters were scrambled in response to the incorrect report that Flight 11 was still airborne and heading south. (9/11 Commission 7/24/2004, pp. 34)
9/11 Commission Disputes NORAD's Account regarding Flights 175 and 93 - Furthermore, whereas NORAD’s chronology claims that NEADS discussed Flight 93 with the FAA on “a line of open communication,” the 9/11 Commission Report will state that NEADS “first received a call about United 93 from the military liaison at [the FAA’s] Cleveland Center at 10:07,” by which time the plane “had already crashed” (see 10:05 a.m.-10:08 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 30) And while NORAD states that the FAA notified NEADS about Flight 175 at 8:43 a.m., according to the report, the first notification came “in a phone call from [the FAA’s] New York Center to NEADS at 9:03” (see (9:03 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 23)
Military Has Been Slow to Provide Details of Its Response on September 11 - US military officials, according to the Washington Post, “have been slow to respond to press inquiries for a timeline that would establish the exact times that civil aviation authorities became aware of the hijackings, when US military commanders were notified, and when US fighter jets took to the air.” (Graham 9/15/2001) On September 13, Air Force General Richard Myers was questioned about the military’s response to the 9/11 attacks before the Senate Armed Services Committee, but his answers were vague and confused (see September 13, 2001). (US Congress 9/13/2001; Farmer 2009, pp. 241-242) A day later, Major General Paul Weaver, director of the Air National Guard, provided reporters with details of the military’s response to the hijackings in an “impromptu hallway interview” at the Pentagon (see September 14, 2001). (Whittle 9/14/2001)

Dr. Abolhassan Astaneh-Asl examines steel from the World Trade Center.Dr. Abolhassan Astaneh-Asl examines steel from the World Trade Center. [Source: University of California, Berkeley]An engineer investigating the remains of the World Trade Center sees melted girders and other evidence that the towers experienced extreme temperatures on 9/11. Dr. Abolhassan Astaneh-Asl is a professor of civil and environmental engineering at the University of California, Berkeley. He specializes in studying structural damage done by earthquakes and terrorist bombings. (Chronicle of Higher Education 12/7/2001; Kohn 3/11/2002) He arrives in New York on September 19 to conduct a two-week scientific reconnaissance of the collapsed towers, hoping to gain an understanding of how they had come down. His project is one of eight financed by the National Science Foundation to study the WTC disaster. (Chang 10/2/2001; Sanders 10/3/2001; US Congress. House. Committee on Science 3/6/2002) He examines numerous pieces of steel taken from Ground Zero. (Chronicle of Higher Education 12/7/2001) Astaneh-Asl will describe the WTC as “the best-designed building I have ever seen.” (Davidson 10/22/2001) Yet he notices unusual warping and other damage in its remaining steel:
bullet At a recycling center in New Jersey, he sees 10-ton steel beams from the towers that look “like giant sticks of twisted licorice.” (Chronicle of Higher Education 12/7/2001) He shows the San Francisco Chronicle a “banana-shaped, rust-colored piece of steel” that has “twisted like toffee during the terrorist attack.” (Davidson 10/22/2001)
bullet He later recalls, “I saw melting of girders in [the] World Trade Center.” (PBS 5/10/2007)
bullet He notes that steel has bent at several connection points that had joined the floors of the WTC to the vertical columns. He describes the connections as being smoothly warped, saying, “If you remember the Salvador Dali paintings with the clocks that are kind of melted—it’s kind of like that.” He adds, “That could only happen if you get steel yellow hot or white hot—perhaps around 2,000 degrees.” (Chronicle of Higher Education 12/7/2001)
bullet Astaneh-Asl says that steel flanges have been reduced “from an inch thick to paper thin.” (Sanders 10/3/2001)
bullet He finds a foot-long twisted shard of steel that is “like a piece of bread, but it was high-strength steel.” He comments, “I haven’t seen anything like this [before].” (Reynolds 10/20/2001)
bullet He finds “severely scorched [steel] members from 40 or so floors below the points of impact [by the planes].” He believes this is the result of the planes having destroyed the elevator walls, thereby allowing burning jet fuel to pour down into the building, igniting fires hundreds of feet below the impact floors. (Kohn 3/12/2002)
bullet He says that, in some places, the fireproofing used to protect the WTC steel has “melted into a glassy residue.” (Chang 10/2/2001)
bullet Astaneh-Asl sees a charred I-beam from WTC Building 7, which collapsed late in the afternoon of 9/11. “The beam, so named because its cross-section looks like a capital I, had clearly endured searing temperatures. Parts of the flat top of the I, once five-eighths of an inch thick, had vaporized.” (Chang 10/2/2001)
Other individuals will report seeing molten metal in the remains of the World Trade Center in the weeks and months after 9/11 (see September 12, 2001-February 2002), and data collected by NASA reveals dozens of “hot spots” (some over 1,300 degrees Fahrenheit) at Ground Zero (see September 16-23, 2001). But Thomas Eagar—an engineering professor at the Massachusetts Institute of Technology—later comments that the “temperature of the fire at the WTC [on 9/11] was not unusual, and it was most definitely not capable of melting steel.” (Eagar and Musso 12/2001) Yet Astaneh-Asl will later put forward the “tentative” conclusion, “The collapse of the [Twin Towers] was most likely due to the intense fire initiated by the jet fuel of the planes and continued due to burning of the building contents.” (Astaneh-Asl 11/30/2003 pdf file) Astaneh-Asl is a member of the team assembled by the American Society of Civil Engineers to investigate the World Trade Center site after 9/11 (see September 12, 2001), though he will resign from this because he disagrees with its decision to keep findings secret until the initial inquiry has been completed. (Chang 10/2/2001; Crenson 9/6/2002)

Wayne Allard.Wayne Allard. [Source: Publicity photo]General Ralph Eberhart, the commander of the North American Aerospace Defense Command (NORAD), appears before the Senate Armed Services Committee and gives NORAD’s account of the events of September 11 and the military’s response to the terrorist attacks that day, but the 9/11 Commission will later find that some of the information he provides is incorrect. (US Congress. Senate 10/25/2001; 9/11 Commission 7/29/2004; Farmer 2009, pp. 248) Eberhart was at NORAD headquarters at Peterson Air Force Base, Colorado, and then went to NORAD’s operations center in Cheyenne Mountain when the 9/11 attacks were taking place. (9/11 Commission 3/1/2004 pdf file; 9/11 Commission 3/1/2004) NORAD released a timeline of its response to the hijackings on September 18 (see September 18, 2001) and Eberhart’s testimony is consistent with that account. (North American Aerospace Defense Command 9/18/2001)
Eberhart Says Fighters Were Scrambled in Response to First Hijacking - During the hearing, Eberhart tells Senator Wayne Allard (R-CO) that after the Federal Aviation Administration (FAA) alerted NORAD to the first hijacking, of Flight 11 (see (8:37 a.m.) September 11, 2001), NORAD ordered two F-15 fighter jets to take off from Otis Air National Guard Base in Cape Cod, Massachusetts (see 8:46 a.m. September 11, 2001), “almost simultaneously to the first crash” at the World Trade Center (see 8:46 a.m. September 11, 2001). Eberhart says that after he learned a plane had hit the WTC, he was initially unsure if that plane was Flight 11. “I’m sitting there hoping that someone has made a mistake; there has been an accident; that this isn’t the hijacked airplane [that hit the WTC], because there is confusion,” he recalls. He says he was informed that “it was a light commuter airplane” that hit the WTC, although, he says, it “didn’t look like that was caused by a light commuter airplane.”
Fighters Didn't Have Enough Time to Stop Second Crash - Eberhart says the FAA notified NORAD that there was “a second hijacked plane”—referring to Flight 175—“somewhere in there,” but although the Otis fighters were “flying toward New York” after being scrambled, they were still eight minutes away from the city when Flight 175 crashed into the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001). “Tragically, there was just too much distance between Otis and New York City to get there in time,” Eberhart comments.
Eberhart Says NORAD Learned Flight 77 Was Hijacked before It Crashed - Eberhart says the first documented instance NORAD has of the FAA notifying it about Flight 77, the third aircraft to be hijacked, was at 9:24 a.m. After the hearing, in responses submitted for the record, Eberhart adds that the FAA notified NORAD’s Northeast Air Defense Sector (NEADS) that Flight 77 “was headed towards Washington, DC.” NEADS, he states, “then passed this information to NORAD’s Air Warning Center and Command Center in Cheyenne Mountain, and to the Continental US NORAD Region’s Regional Air Operations Center.”
Fighters Were Scrambled Too Late to Prevent the Pentagon Attack - Eberhart says NORAD launched two F-16 fighters from Langley Air Force Base in Virginia “as soon as” the FAA alerted it to the hijacking of Flight 77 (see 9:24 a.m. September 11, 2001). However, he says, these fighters were still “approximately 13 minutes away from Washington, DC, when that tragic crash [at the Pentagon] occurred.”
Eberhart Is Unaware of Reason for FAA's Delay in Contacting NORAD - Senator Carl Levin (D-MI) tells Eberhart: “The timeline that we’ve been given is that at 8:55 on September 11, American Airlines Flight 77 began turning east, away from its intended course. And at 9:10, Flight 77 was detected by the FAA radar over West Virginia heading east. That was after the two planes had struck the World Trade Center towers. Then 15 minutes later, at 9:25, the FAA notified NORAD that Flight 77 was headed toward Washington.” In light of this, he asks, “[D]o you know why it took 15 minutes for the FAA to notify NORAD?” Eberhart replies: “I do not know, sir, why it took that amount of time for FAA. I hate to say it, but you’ll have to ask FAA.” Senator John Warner (R-VA), who has an extensive military background, tells Eberhart he is “a little bit stunned that you don’t know why that delay occurred.” He continues, saying, “I would have thought by now all of you in this chain would have gone back, rehearsed these things, figured out what happened, what went wrong, so that we ensure it won’t happen again.” In his responses submitted for the record, Eberhart suggests possible reasons for the delay, stating that after the FAA lost radar contact with Flight 77, it “began to receive calls from outside agencies with reports of a possible downed aircraft. Additionally, the loss of radio contact with the aircraft added to the confusion.” Consequently, he states, “I believe the FAA was faced with conflicting information, which hindered them from making an accurate assessment of the actual location of the aircraft.”
Eberhart Says NORAD Was Following Flight 93 before It Crashed - Eberhart says NORAD was aware of the problems with Flight 93, the fourth hijacked plane, before it crashed in Pennsylvania (see (10:03 a.m.-10:10 a.m.) September 11, 2001 and (10:06 a.m.) September 11, 2001). He tells Allard that the FAA “knew before it deviated its flight pattern” that Flight 93 “was hijacked.” He says NORAD had been “trying to decide, initially, if that flight was going to continue west and if there was some other target for that flight. Was it Chicago? Was it St. Louis? And what might we do to launch an aircraft to intercept it.” But he says that after the FAA reacquired Flight 93 on radar, NORAD thought the plane “was headed probably for Washington, DC, but maybe New York.” He says NORAD decided at that time to keep the Otis and Langley fighters in place over New York and Washington. If another suspicious plane was approaching, he says, “our intent was to go out and meet that aircraft and destroy it if we needed to, if it entered either Washington, DC, or New York City airspace.” However, in his responses submitted for the record, Eberhart states that the “data/log entries received by NORAD from the FAA [after September 11] do not show a time or entry indicating the FAA specifically notified the Pentagon that United Airlines Flight 93 was hijacked.” He also states that NORAD “did not notify” the National Military Command Center (NMCC) at the Pentagon that Flight 93 had been hijacked.
9/11 Commission Disputes Some of Eberhart's Claims - Several claims Eberhart makes in the hearing will be contradicted by evidence uncovered by the 9/11 Commission during its investigation of the terrorist attacks. Whereas Eberhart says the military was first notified about the hijacking of Flight 77 at 9:24 a.m. and implies that this notification prompted the scrambling of fighters from Langley Air Force Base, according to John Farmer, the senior counsel to the 9/11 Commission, “[T]he first notification regarding American 77 occurred at 9:34, when it was reported ‘lost’” (see 9:34 a.m. September 11, 2001). (US Congress. Senate 10/25/2001; Farmer 2009, pp. 248-254) The notice NEADS received at 9:24 a.m., according to the 9/11 Commission Report, was the incorrect claim that Flight 11 “had not hit the World Trade Center and was heading for Washington, DC” (see 9:21 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 34) Consequently, Farmer will write, “the scramble of the Langley fighters did occur as an immediate reaction to a notification about hijacking, but that notification was not, as [Eberhart’s] testimony implies, a report that American 77 was hijacked, but the report that American 11 was still airborne and heading for Washington.” And while Eberhart claims the FAA told NEADS that Flight 77 was heading toward Washington, according to Farmer: “The FAA never notified NEADS that American 77 was heading for Washington, DC. There is no such notification recorded on any tape or in any log maintained at NEADS or at NORAD.” Furthermore, while Eberhart claims the military was following Flight 93 on radar before it crashed and was in position to shoot it down if it approached Washington, Farmer will write that “in fact, NEADS never located United 93 on radar, because the plane had already crashed by the time NEADS was notified.” (Farmer 2009, pp. 251, 254-255)

A sample of WTC steel eroded and corroded due to eutectic formations.A sample of WTC steel eroded and corroded due to eutectic formations. [Source: FEMA]The Journal of the Minerals, Metals and Materials Society (JOM) reports that the examination of a beam from the remains of WTC Building 7—which collapsed late in the afternoon of 9/11 (see (5:20 p.m.) September 11, 2001)—has revealed “unexpected erosion” of the steel. The article states: “The formation of the eutectic mixture of iron oxide and iron sulfide lowers the temperature at which liquid can form in this steel. This strongly suggests that the temperatures in this region of the steel beam approached around 1,000°C, forming the eutectic liquid by a process similar to making a ‘blacksmith’s weld’ in a hand forge.” (Barnett, Biederman, and Sisson 12/2001) The New York Times will call this “perhaps the deepest mystery uncovered in the investigation.” (Glanz and Lipton 2/2/2002) FEMA’s World Trade Center Building Performance Study, released in May 2002 (see May 1, 2002), will add that the same “unusual erosion patterns” have been observed in a sample of the remaining structural steel from one of the Twin Towers. It will state, “This sulfur-rich liquid penetrated preferentially down grain boundaries of the steel, severely weakening the beam and making it susceptible to erosion.” FEMA is unable to explain this phenomenon, saying, “The severe corrosion and subsequent erosion… are a very unusual event. No clear explanation for the source of the sulfur has been identified.… It is possible that this is the result of long-term heating in the ground following the collapse of the buildings. It is also possible that the phenomenon started prior to collapse and accelerated the weakening of the steel structure.” (Federal Emergency Management Agency 5/1/2002, pp. C-1 - C-13) Despite FEMA’s call for further research, the National Institute of Standards and Technology (NIST) will make no mention of the eutectic formations in its final report into the WTC collapses, released in late 2005, following its three-year investigation. (National Institute of Standards and Technology 9/2005, pp. 13)

Joseph Trombino.Joseph Trombino. [Source: Family photo]An armored truck that was parked in the basement of the World Trade Center on the morning of 9/11 is discovered by recovery workers, who find that diamonds and bonds worth over a million dollars are inexplicably missing from it. The Brink’s armored truck was driven down to the underground receiving platform of the North Tower sometime before 8:46 a.m. on September 11, to deliver $14 million in cash. As well as this cash, the vehicle was carrying negotiable bonds and diamonds.
Driver Stayed with His Truck after Flight 11 Hit the WTC - Its driver, Joseph Trombino, waited while his three fellow guards dropped off the cash with some Bank of Nova Scotia guards, who put the money into canvas carts to be taken to a vault. Trombino was still in his vehicle when Flight 11 crashed into the North Tower, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). His fellow guards were subsequently evacuated from the tower. But instead of leaving, Trombino stayed with his vehicle, perhaps to protect the cargo or because he expected his colleagues to return. At 9:15 a.m., he called Brink’s and reported that a police officer had told him to move his truck because the tower was unstable. He also reported that the building was shaking and water was cascading down. He was killed when the North Tower collapsed, at 10:28 a.m. (see 10:28 a.m. September 11, 2001).
Recovery Workers Discover the Armored Truck - Now, over three months later, a recovery team unearths part of the roof of Trombino’s truck in the wreckage of the WTC. Sergeant Kevin Murphy of the Port Authority Police Department (PAPD) calls Lieutenant William Keegan, who is in charge of the PAPD’s nighttime rescue and recovery operation at Ground Zero, and tells him about the find. Keegan, in turn, contacts Brink’s to alert it to the discovery of one of its vehicles. Brink’s says it will send someone to the WTC site as soon as possible and mentions that the truck contains over a million dollars’ worth of valuables, comprising $250,000 in diamonds and $750,000 in negotiable bonds. The company also says the truck’s driver—Trombino—is still missing. Keegan then heads to the WTC site and a Brink’s supervisor also goes there.
Diamonds and Bonds Are Missing from the Truck - Once enough rubble has been removed to see inside the truck, Keegan and the other workers notice that the cab is empty. Keegan will later wonder if Trombino sought refuge under his truck when the Twin Towers collapsed, got into the back of it for safety, or left the vehicle and tried to get up to the street. Keegan wants to get into the back of the truck to remove the valuables from there. To get inside, the workers cut into a section of the roof with a circular saw and peel it back to create an opening. PAPD officer Tony Demeri is then lowered down through the hole. But after he carries out a full inspection, Demeri reports that the truck is empty, with no bonds or diamonds to be found. (New York Times 9/17/2001; Gardiner 9/22/2001; Keegan and Davis 2006, pp. 147-149) Trombino’s wife, Jean Trombino, will say in January 2002 that although her husband’s body has been recovered, she hasn’t been told where it was found. (New Jersey Star-Ledger 1/2/2002) Brink’s will report in 2014 that the body was found near the water fountain between the Twin Towers, in the WTC plaza, along with Trombino’s messenger bag. (Brink's Blog 9/10/2014) The canvas carts filled with the $14 million that Trombino delivered on September 11 will be discovered in the rubble of the WTC in February 2002. However, Keegan will write in 2006, “Neither the bonds nor the diamonds have ever been recovered.” (Keegan and Davis 2006, pp. 149)

World Trade Center Building 7, which collapsed late in the afternoon of 9/11, had contained two independently supplied and operated fuel systems for emergency power. The fuel had been in several storage tanks low down in the building. In March and April, two 11,700-gallon tanks that had been located under the building’s first floor loading dock and operated by Silverstein Properties are removed from the collapse site. They show no evidence of fuel leakage. FEMA says that approximately 20,000 gallons of fuel are subsequently recovered from them, which is about 85 percent of their total capacity. In early May, two 6,000-gallon tanks that had been owned by Salomon Smith Barney and were also located below the loading dock are recovered. These were always kept full for emergencies and would have been full on 9/11. Yet now they are damaged and appear to be empty. According to the National Institute of Standards and Technology (NIST), “Some fuel contamination was found in the gravel below the tanks and sand below the slab on which the tanks were mounted, but no contamination was found in the organic marine silt/clay layer underneath.” Shyam Sunder, lead investigator of NIST’s WTC investigation, will state that this “suggests that this fuel… could have been consumed in the building.” This finding “allows for the possibility, though not conclusively, that the fuel may have contributed to a fire on Floor 5” of WTC 7. (Federal Emergency Management Agency 5/1/2002, pp. 5-15; Associated Press 6/6/2002; Rayman 6/6/2002; National Institute of Standards and Technology 4/5/2005 pdf file; New York City Council 9/8/2006 pdf file) Some people have speculated that the diesel fuel stored in WTC 7 may have played a role in its collapse (see March 2, 2002). However, FEMA says, “Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis has only a low probability of occurrence.” WTC 7 housed another 6,000-gallon tank between its second and third floors, which was meant to fuel generators that would supply backup power to the mayor’s 23rd-floor emergency command center (see June 8, 1999). Currently, no data are available on the condition of this tank. (Federal Emergency Management Agency 5/1/2002, pp. 5-16 and 5-31)

A New York Times article theorizes that diesel fuel tanks were responsible for the collapse of Building 7 of the WTC. It collapsed at 5:20 p.m. on 9/11, even though it was farther away from the Twin Towers than many other buildings that remained standing (see (5:20 p.m.) September 11, 2001). It was the first time a steel-reinforced high-rise in the US had ever collapsed in a fire. One of the fuel tanks had been installed in 1999 (see June 8, 1999) as part of a new “Command Center” for Mayor Rudolph Giuliani. (Glanz and Lipton 3/2/2002; Debaise 9/10/2002) However, in interviews, several Fire Department officers who were on the scene say they were not aware of any combustible liquid pool fires in WTC 7. (Fire Engineering 9/2002) And, according to the National Institute of Standards and Technology (NIST), between 11:30 a.m. and 2:30 p.m. on 9/11, “No diesel smells [were] reported from the exterior, stairwells, or lobby areas” of WTC 7. (National Institute of Standards and Technology 6/2004, pp. L-22) Curiously, given all the Wall Street scandals later in the year, Building 7 housed the SEC files related to numerous Wall Street investigations, as well as other federal investigative files. All the files for approximately 3,000 to 4,000 SEC cases were destroyed. Some were backed up in other places, but many were not, especially those classified as confidential. (Fisk 9/17/2001) Lost files include documents that could show the relationship between Citigroup and the WorldCom bankruptcy. (Goldstein 8/9/2002) The Equal Employment Opportunity Commission estimates over 10,000 cases will be affected. (Loomis 9/14/2001) The Secret Service had its largest field office, with more than 200 employees, in WTC 7 and also lost investigative files. Says one agent: “All the evidence that we stored at 7 World Trade, in all our cases, went down with the building.” (Tech TV 7/23/2002) The IRS and Department of Defense were also tenants, along with the CIA, which, it has been revealed, had a secret office in Building 7. (Benson 11/4/2001; Risen 11/4/2001; Federal Emergency Management Agency 5/1/2002, pp. 5-2; Jacobson 3/20/2006) A few days later, the head of the WTC collapse investigation says he “would possibly consider examining” the collapse of Building 7, but by this time all the rubble has already been removed and destroyed. (US Congress 3/6/2002)

The House Committee on Science holds a hearing on the investigation into the collapse of the World Trade Center on 9/11. Witnesses from industry, academia, and government testify on the collapses and the subsequent efforts to find out how and why they occurred. The hearings charter points out several problems that have severely hampered investigations. It says, “Early confusion over who was in charge of the [WTC collapse] site and the lack of authority of investigators to impound pieces of steel for examination before they were recycled led to the loss of important pieces of evidence that were destroyed early during the search and rescue effort.… Some of the critical pieces of steel—including the suspension trusses from the top of the towers and the internal support columns—were gone before the first BPAT [Building Performance Assessment Team] team member ever reached the site” (see September 12-October 2001). Furthermore, “The building owners, designers and insurers, prevented independent researchers from gaining access—and delayed the BPAT team in gaining access—to pertinent building documents largely because of liability concerns.” Regarding the decision to rapidly recycle the WTC steel, US Representative Joseph Crowley (D-NY) says, “I do believe that conspiracy theorists are going to have a field day with this,” and says this loss of important physical evidence “is not only unfortunate, it is borderline criminal.” In his statement before the committee, Glenn Corbett, a science professor at John Jay College, claims that the “lack of significant amounts of steel for examination will make it difficult, if not impossible, to make a definitive statement as to the cause and chronology of the collapse.” He also complains, “[W]e are staffing the BPAT with part-time engineers and scientists on a shoestring budget.” (US Congress 3/6/2002; McCaffrey 3/7/2002)

The first two of five stills of the Pentagon impact.The first two of five stills of the Pentagon impact. [Source: Public domain]A series of photos surfaces purporting to show a plane crashing into the Pentagon on 9/11. It is not clear who released the photos, but the Pentagon asserts that they are authentic and were taken by a Pentagon security camera. The release of these pictures comes within days of the publication of the book l’Effroyable Imposture that disputes the claim that Flight 77 hit the Pentagon (see Early March 2002). “Officials could not immediately explain why the date typed near the bottom of each photograph is September 12 and the time is written as 5:37 p.m.,” the book notes. (US department of Defense 9/11/2001; Associated Press 3/8/2002; News 3/8/2002) The whole video, together with another also taken by a Pentagon security camera, will be released in 2006 (see May 16, 2006). (Burns 5/17/2006)

A structural engineer who was a member of the team assembled by the American Society of Civil Engineers to investigate the World Trade Center site after 9/11 complains about the decision to rapidly destroy the remaining structural steel from the collapsed WTC buildings. Dr. Abolhassan Astaneh-Asl is a professor of civil and environmental engineering at the University of California at Berkeley, and specializes in studying structural damage done by earthquakes and terrorist bombings. (Chronicle of Higher Education 12/7/2001; Kohn 3/11/2002; Crenson 9/6/2002) He had come to New York a week after 9/11 to examine the collapsed towers, hoping to gain an understanding of how they had come down (see September 19-October 2001). (Chang 10/2/2001; US Congress. House. Committee on Science 3/6/2002) However, New York City officials had decided early on to quickly transport the remaining structural steel to scrap yards, to be shipped abroad and melted down for reuse (see Shortly After September 11, 2001). As CBS News now reports, “As a result, Astaneh has almost certainly missed seeing crucial pieces before they were cut up and sent overseas.” Astaneh-Asl complains: “When there is a car accident and two people are killed, you keep the car until the trial is over. If a plane crashes, not only do you keep the plane, but you assemble all the pieces, take it to a hangar, and put it together. That’s only for 200, 300 people, when they die. In this case you had 3,000 people dead.” He says: “My wish was that we had spent whatever it takes, maybe $50 million, $100 million, and maybe two years, get all this steel, carry it to a lot. Instead of recycling it, put it horizontally, and assemble it. You have maybe 200 engineers, not just myself running around trying to figure out what’s going on. After all, this is a crime scene and you have to figure out exactly what happened for this crime, and learn from it.” However, he adds, “My wish is not what happens.” (Kohn 3/12/2002) Astaneh-Asl previously told the New York Times that the scrap steel from the WTC was “worth only a few million dollars, a tiny fraction of the billions of dollars the cleanup will cost.” Yet the knowledge that could be gained from it “could save lives in a future disaster.” (Chang 10/2/2001)

FEMA’s World Trade Center Building Performance Study.FEMA’s World Trade Center Building Performance Study. [Source: FEMA]FEMA releases its report of the WTC collapses. It concludes, “[W]ith the information and time available, the sequence of events leading to the collapse of each tower could not be definitively determined.” On Building 7: “The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown at this time.” (Federal Emergency Management Agency 5/1/2002)

Overview of aircraft’s trajectory inside the Pentagon showing the points of entry (top right) and “exit” (bottom left).Overview of aircraft’s trajectory inside the Pentagon showing the points of entry (top right) and “exit” (bottom left). [Source: pentagonresearch (.com)] (click image to enlarge)A report about shoring used in the Pentagon submitted to the University of Maryland makes reference to a hole created in a wall inside the Pentagon on 9/11, near the end of the path of damage caused by the aircraft that hit the building. However, the assessment gives no specific explanation for what exactly caused the hole. The hole was on the ground level in a brick wall of the C Ring (the third of five concentric rings that form the Pentagon), on the A-E Drive, a service roadway that runs round the building between its C and B rings. The report says, “a nine foot diameter exit hole was created in the wall of C ring and the remainder of the debris from the impact ended up in the […] A-E Drive.” (Titus 5/3/2002, pp. 9 pdf file) Similarly, other reports do not offer any conclusive explanation for what caused the hole. The American Society of Civil Engineers’ Pentagon Building Performance Report, published in 2003 January 23, 2003, will show the hole’s location in several diagrams, but explain only that “there was a hole in the east wall of Ring C, emerging into A-E Drive, between column lines 5 and 7 in Wedge 2. The wall failure was approximately 310 ft from where the fuselage of the aircraft entered the west wall of the building.” (Mlakar et al. 1/2003, pp. 28 pdf file) The Arlington County After-Action Report, published in 2002, contains a photo of the exit hole with the note “the damage extended all the way through the inner wall of the C Ring, a distance of approximately 285 feet.” It offers no further explanation for what precisely caused the hole. (US Department of Health & Human Services 7/2002, pp. A8) Various explanations of how the hole came about are advanced after 9/11 (see September 15, 2001 and After).

Recovery efforts end at the World Trade Center site. (Ibarguen 5/31/2002)

The National Institute of Standards and Technology (NIST)—an agency of the US Commerce Department’s Technology Administration—announces details of its forthcoming investigation into the collapses of the World Trade Center Twin Towers and Building 7 on 9/11. The NIST investigation aims “to investigate the building construction, the materials used, and the technical conditions that contributed to the outcome of the World Trade Center (WTC) disaster.” It also aims to examine the activities of building occupants and emergency responders on 9/11, studying such issues as emergency communications within the WTC, the movement of people during the evacuations, and issues around persons with disabilities. Leading technical experts from industry, academia, and other laboratories, alongside NIST’s own expert staff, will participate in the investigation. Expert professionals from the private sector will also be involved. Glenn Corbett, a fire science professor at John Jay College, says, “This is going to be the most extensive building disaster investigation ever performed.” (Associated Press 8/21/2002; National Institute of Standards and Technology 8/21/2002; National Institute of Standards and Technology 8/3/2005) The investigation is formally authorized in October 2002, when the National Construction Safety Team Act is signed into law. The act, which gives NIST authorization to investigate major building failures in the US, is written largely as a result of the World Trade Center collapses. (National Institute of Standards and Technology 10/2/2002; Glanz 5/8/2003) NIST’s investigation is originally proposed to last two years, with a budget of $16 million. (National Institute of Standards and Technology 8/21/2002) However, it eventually will last three years, with its final report into the collapses of the Twin Towers being released in October 2005 (see October 26, 2005). A previous analysis of the WTC collapses conducted by FEMA and the American Society of Civil Engineers (ASCE) was completed earlier in 2002 (see May 1, 2002), but this had a budget of just $1.1 million. By the time NIST starts its investigation, much of the crucial steel debris from the WTC collapses has already been destroyed (see September 12-October 2001). They later refer to there being a “scarcity of physical evidence that is typically available in place for reconstruction of a disaster.” (National Institute of Standards and Technology 9/2005, pp. xxxvi)

One of the key variables in the computer simulations used by the National Institute of Standards and Technology (NIST) (see (October 2002-October 2005)) to explain the WTC collapses is the speed of the aircraft that hit the towers. However, there is no consensus on how fast the planes were traveling. The first estimate was contained in an initial research paper by engineers Zdenek Bazant and Yong Zhou, who stated that the planes were traveling at 342 miles per hour. (Bazant and Zhou 1/2002 pdf file) However, the Federal Emergency Management Agency (FEMA) and American Society of Civil Engineers (ASCE) report said that the plane that hit the North Tower was traveling at 470 miles per hour, whereas the plane that hit the South Tower was traveling at 590 miles per hour (see May 1, 2002). (Federal Emergency Management Agency 5/1/2002, pp. 31) NIST initially estimates speeds of 435 miles per hour for the plane that hit the North Tower and 497 miles per hour for the plane that hit the South Tower. These estimates closely match figures produced by the Massachusetts Institute of Technology, which finds speeds of 429 miles per hour and 503 miles per hour for the two planes. However, NIST is dissatisfied with these results and does a second study, which finds speeds of 466 and 545 miles per hour. It then uses speeds of 472 and 570 miles per hour in its severe case model, on which its final report is based. In this model, the simulation of the planes traveling faster means greater damage to the towers’ structure, making them more unstable. (Kausel 5/2002 pdf file; National Institute of Standards & Technology 9/2005, pp. 152-165 pdf file; National Institute of Standards and Technology 9/2005, pp. 109)

Matthys Levy.Matthys Levy. [Source: PBS]A report is made publicly available, which the Engineering News-Record calls the “most comprehensive study yet on the destruction of the World Trade Center.” The study was commissioned by WTC leaseholder Silverstein Properties Inc. to support a $7 billion insurance claim, and conducted by a team of engineers from several leading firms, including Weidlinger Associates, LZA Technology/Thornton-Tomasetti, and ARUPFire. It is intended to build on a previous study sponsored by FEMA (see May 1, 2002). The report’s findings are based on an analysis of original structural drawings, thousands of photos, and dozens of videos. Investigators used fire evaluation techniques and powerful computer software to simulate the condition of each tower at critical times between the planes’ impacts and the towers’ collapses. The earlier FEMA investigators had no access to such computer modeling. Matthys Levy, the chairman of Weidlinger Associates and one of the engineers on the study team, says, “The buildings had tremendous reserve capacity and that was reflected in all of the elements we analyzed. In fact, because there were so much excess capacity, the columns even in the impact floors did not buckle immediately, but failed as the result of the fire.” The report states that failure of the WTC’s steel floor supports (“trusses”) did not contribute to the collapses. Instead, the collapses were caused by the failure of steel structural columns that were either destroyed when the planes hit or lost fireproofing, leaving them vulnerable to the weakening effects of the ensuing fires. It says that debris and dust distributed by the plane crashes inhibited the fires, such that the average air temperatures on the impact floors were between 400 and 700°C (750-1,300°F): significantly lower than those associated with typical “fully developed” office fires. However, says Matthys Levy, “By the time the temperature inside the buildings reached 400 degrees, the steel would have lost approximately 50% of its strength. Eventually, gravity took over and the towers began to fall.” Then, according to the analysis led by researchers from LZA Technology/Thornton-Tomasetti, “Once collapse initiated in each tower, essentially all of the interior structure of the tower fell straight down with floors pancaking on top of one another. The network of perimeter steel columns and spandrels acted like a chute to funnel the interior contents into the tower footprint.” According to the computer simulations, the damage to the South Tower’s steel core columns was so severe that the tower should have collapsed immediately after the plane hit. Civil engineer John Osteraas says this incorrect result casts doubt upon some of the study’s predictions. The report concludes that the collapse of the South Tower did not cause or contribute to the subsequent collapse of the North Tower, thus supporting Silverstein Properties’ claim that the terrorist attack represented two occurrences, entitling it to two $3.5 billion insurance policy limits. A separate study commissioned by the insurers contradicts this (see October 23, 2002). The Silverstein report apparently does not examine the collapse of WTC Building 7, a 47-story skyscraper that also collapsed on 9/11 (see (5:20 p.m.) September 11, 2001). It has been passed on to the National Institute of Standards and Technology (NIST), which is undertaking its own investigation of the WTC collapses (see August 21, 2002). (Glanz and Lipton 9/30/2002; McLeod 10/23/2002; Silverstein Properties, Inc. 10/23/2002 pdf file; Post 10/25/2002; Glanz and Lipton 10/29/2002; Post 11/4/2002; Misonzhnik 4/30/2003)

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