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Context of 'Between 10:00 a.m. and 10:27 a.m. September 11, 2001: Command Bus Is Moved after a Police Captain Warns that the North Tower Will Collapse'

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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)

Jackie Chan.Jackie Chan. [Source: Reuters]A scene for a Hollywood movie about a terrorist plot to blow up the World Trade Center was originally scheduled to be filmed at the top of one of the Twin Towers at this time, but the filming has been canceled because the script for the scene is late to arrive. (ABC News 9/19/2001; Empire 9/19/2001; Moore 9/27/2002) The action-comedy movie, titled Nosebleed, which was written in 1999 (see February 1999-September 11, 2001), is set to feature the well-known martial artist and actor Jackie Chan as a window washer at the WTC who uncovers a terrorist plot to bomb the Twin Towers. (Carver and Petrikin 2/7/1999; Jensen and Svetkey 9/24/2001)
Actor 'Would Probably Have Died' if Filming Took Place - Chan will later tell the Hong Kong newspaper Oriental Daily News, “Filming was scheduled to have taken place at 7:00 a.m. [on September 11] and… I had to be at the top of one of the towers for one of the scenes.” (ABC News 9/19/2001; Empire 9/19/2001) The scene, Chan will say, was going to be filmed at the “Top of the World restaurant.” (Moore 9/27/2002) Presumably he is referring to Windows on the World, the restaurant at the top of the North Tower. Everyone who is in Windows on the World when Flight 11 hits the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001) will subsequently die. (NPR 9/11/2003) Chan will comment, “I would probably have died if the shooting had gone ahead as planned.” Today’s filming at the WTC has been canceled, reportedly because the script for the scene that would have been filmed is late. (ABC News 9/19/2001; Empire 9/19/2001) “The action was good, but, somehow, the script not ready,” Chan will say.
Actor Is in Canada for Another Film - Instead of doing the scene for Nosebleed, Chan is in Toronto, Canada, where filming began the previous day for another movie he is starring in. That movie, The Tuxedo, is an action-comedy that Steven Spielberg is involved in producing. Chan will say of The Tuxedo, “I only did this movie because Steven Spielberg asked me himself.” (Tourtellotte 6/17/2001; Bickley 7/11/2001; Moore 9/27/2002) He will recall learning of the attacks in New York during filming, saying: “After the first shot, I turned around and everyone was looking at one monitor, and nobody had responded to me. They said, ‘Jackie, a plane crashed into the World Trade Center.’ Then we [saw] the second plane crash. We knew it was a terrorist attack and everyone started crying.” Chan will add, “The whole day I was like a walking dead man.” (Klass 9/23/2002)
Actor Learned 'Secrets' of the WTC in Preparation for Film - Chan has done a lot of groundwork for Nosebleed. “We had visited the [WTC] before September 11,” he will recall. “The producer. My manager. We had dinner upstairs. We were getting all kinds of information. I was going to play a window washer, so they were telling me things like how many windows the building had.” Chan has therefore learned “the ‘secrets’ of the towers—how air pressure was regulated with doors that might be useful as gags in one of his trademark fights—which sides of the buildings one could work on to avoid the wind,” according to the Orlando Sentinel. (Moore 9/27/2002; Denerstein 9/28/2002) Production of Nosebleed will be canceled as a result of the 9/11 attacks. (Aberman 10/24/2001; Hoberman 12/4/2001)

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 pdf file) 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)

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 8/13/2002; 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).

George Tabeek, a security manager with the Port Authority of New York and New Jersey, decides to have an announcement made in the South Tower of the World Trade Center, instructing workers to stay in, or return to, their offices, instead of evacuating. (Grant 9/6/2011; Walmsley 9/10/2011) After Flight 11 hits the North Tower at 8:46 a.m. (see 8:46 a.m. September 11, 2001), many people in the South Tower, who are unclear about what has happened, decide to leave their building. (9/11 Commission 7/24/2004, pp. 287)
Security Manager Passes on Decision to Fire Command Desk - However, around the same time, Tabeek, the Port Authority’s security manager for the WTC, decides not to evacuate the South Tower and to issue instructions advising workers to go back to their offices. (Walmsley 9/10/2011) Tabeek will later recall that he contacts his “fire safety command” and tells the person he talks with “to evacuate the North Tower, but keep people inside the South Tower.” (Grant 9/6/2011) Presumably Tabeek means that he contacts the fire command desk in the lobby of the South Tower, which is currently manned by Philip Hayes, a deputy fire safety director. A button at the desk allows fire safety directors to deliver announcements over the tower’s public address system. (Dwyer and Flynn 2005, pp. 26)
Security Manager's Instruction Leads to Announcement - Shortly after Tabeek gives his instruction to the fire command desk, an announcement, later believed to have been made by Hayes, will go out over the public address system, telling workers in the South Tower that their building is safe and advising them to stay in, or return to, their offices (see (8:50 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 287-288; Dwyer and Flynn 2005, pp. 72) That announcement “may have led to the deaths of hundreds of people,” USA Today will suggest. (Moore and Cauchon 9/2/2002) Some security officials in the South Tower will instruct workers, in person, to return upstairs, rather than evacuate (see (8:47 a.m.-9:02 a.m.) September 11, 2001). It is unclear if those officials are, like Hayes, acting on instructions issued by Tabeek. (Vulliamy 9/16/2001; 9/11 Commission 7/24/2004, pp. 289)
Instruction Is Inconsistent with Protocol - Tabeek’s instruction reportedly goes against protocol. The 9/11 Commission Report will state: “When a notable event occurred [at the WTC], it was standard procedure for the on-duty deputy fire safety director to make an ‘advisory’ announcement to tenants who were affected by or might be aware of the incident, in order to acknowledge the incident and to direct tenants to stand by for further instructions. The purpose of advisory announcements, as opposed to ‘emergency’ announcements (such as to evacuate), was to reduce panic.” Therefore, according to the 9/11 Commission Report, “A statement from the deputy fire safety director informing tenants that the incident had occurred in the other building” would be “consistent with protocol.” However, “the expanded advice” that Tabeek asks to be given—for workers to stay in, or return to, their offices—“did not correspond to any existing written protocol.” (9/11 Commission 7/24/2004, pp. 288, 544)
Security Manager Thinks Evacuation Would Put Workers in Danger - Tabeek will explain why he decided to instruct workers to stay in the South Tower, telling ABC News he was “worried about the debris raining down from the crippled North Tower onto the plaza below,” and he was therefore “afraid that if he evacuated people who he thought were safe in the South Tower… they’d be in grave danger from the falling debris.” He will tell the New Jersey Star-Ledger, “If these people’s lives in [the South Tower] are not in danger, if I put them outside, their life is in danger.” Tabeek will also explain his decision by saying, “We never took into consideration a dual attack.” In response to criticism of his decision, he will say, “I can’t go back on the orders I gave, because at the time it was the right thing to do.” (Grant 9/6/2011; Walmsley 9/10/2011)

Bush’s travels in the Sarasota, Florida, region, with key locations marked.Bush’s travels in the Sarasota, Florida, region, with key locations marked. [Source: Yvonne Vermillion/ MagicGraphix.com]White House officials and reporters who are traveling with President Bush in Florida learn that a plane has crashed into the World Trade Center while they are being driven to the Emma E. Booker Elementary School in Sarasota, but Bush is not notified about the crash at this time. (Bartlett 8/12/2002; Martin 7/4/2004; Keil 9/2004) A number of senior officials who are together in a van learn about the crash as their vehicle is pulling into the school’s driveway. Those in the van include White House press secretary Ari Fleischer; White House communications director Dan Bartlett; Bush’s senior adviser, Karl Rove; Bush’s CIA briefer, Mike Morell; and White House photographer Eric Draper. (Bartlett 8/12/2002; Fleischer 2005, pp. 138; Morell 9/2006 pdf file)
Press Secretary Is Contacted by an Assistant - Fleischer is alerted to the crash by Brian Bravo, an assistant in the White House press office. Bravo learned what happened when he was called by a friend in New York who had seen Flight 11 hitting the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001), and then saw the television coverage of the incident. In response, he sent a pager message to Fleischer, simply stating, “A plane has hit the World Trade Center.” (Fleischer 8/8/2002; Fleischer 2005, pp. 138; Graff 9/9/2016) After seeing the message, Fleischer exclaims: “Oh, my God! I don’t believe it! A plane just hit the World Trade Center.” (Krueger 9/10/2002; Bamford 2004, pp. 17) He turns to Morell and asks the CIA officer if he knows anything about the incident. Morell says no and that he will make some calls to try and find out more. He will call the CIA’s operations center to see what people there know (see Shortly Before 9:00 a.m. September 11, 2001). (Morell 9/2006 pdf file; Morell and Harlow 2015, pp. 47-48)
Other Officials Receive Calls from the White House - Around the time Fleischer is alerted to the crash, Rove is called from the White House by his assistant, Susan Ralston, who tells him what happened at the WTC (see (8:55 a.m.) September 11, 2001). (Lemann 9/25/2001; Regencia 2/2004) And Bartlett receives a call from his assistant at the White House, who tells him: “There’s just been an incredible accident or something. A plane has hit the World Trade Center.” (Bartlett 8/12/2002)
Military Officers Are Called about the Crash - In another vehicle in the motorcade, Navy Captain Deborah Loewer, the director of the White House Situation Room, receives a call from Rob Hargis, the senior duty officer in the Situation Room, alerting her to the crash. (Lance 8/17/2003; Bohn 8/29/2011; Priess 2016, pp. 239-240) Meanwhile, as his vehicle is arriving at the school, Lieutenant Colonel Thomas Herman, a senior presidential communications officer assigned to the White House, is contacted by his operations center, and notified that a plane has struck one of the Twin Towers and National Security Adviser Condoleezza Rice wants to talk on the phone with the president. (Bates 10/2002)
Members of the Press Are Alerted to the Crash - Members of the press traveling in the motorcade also learn about the crash during the journey to the school. Reporter Richard Keil is told what happened when he talks on the phone with a friend who has seen the coverage of the incident on television. Keil then passes on the news to the other reporters and photographers in the press van. And Kia Baskerville, a CBS News White House producer, receives a call on her cell phone from a producer who tells her about the crash. (Cosgrove-Mather 8/19/2002; Keil 9/2004)
President Is Not Told about the Crash - And yet, while these people are alerted to the crash, Bush reportedly is not called about it at this time and he will only be told what has happened after he arrives at the school (see (8:55 a.m.) September 11, 2001 and (Shortly After 8:55 a.m.) September 11, 2001). (Martin 7/4/2004; Rove 2010, pp. 249-250; Priess 2016, pp. 240) This is despite the fact that his limousine is “bristling with communications gear,” according to the Los Angeles Times. (Jones 1/24/2001) “In the presidential limo, the communications system is almost duplicative of the White House,” author Philip Melanson will note. (Martin 7/4/2004) “Yet despite having a secure STU-III phone next to him… and an entire national security staff at the White House,” author James Bamford will comment, “it appears that the president of the United States knew less than tens of millions of other people in every part of the country who were watching the attack as it unfolded.” (Bamford 2004, pp. 17) “It mystifies me why they didn’t call the president,” Robert Plunket, a reporter who is waiting for the president at the school, will remark. “He’s totally surrounded by state-of-the-art communications equipment and nobody tells him.” (Martin 7/4/2004)

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)

An announcement is made over the public address system in the South Tower of the World Trade Center, advising workers that they can begin an orderly evacuation of the building if conditions warrant it. (Dwyer 5/17/2004; 9/11 Commission 7/24/2004, pp. 289) A previous announcement over the public address system instructed people in the South Tower to stay in, or return to, their offices, rather than evacuate (see (8:50 a.m.) September 11, 2001). (9/11 Commission 7/24/2004, pp. 287-288; Dwyer and Flynn 2005, pp. 72) The new announcement begins: “May I have your attention, please. Repeating this message: the situation occurred in Building 1 [i.e. the North Tower].” The announcer then says, “If the conditions warrant on your floor, you may wish to start an orderly evacuation.” (Dwyer 5/17/2004) The announcement is presumably made by Philip Hayes, the deputy fire safety director on duty at the fire command desk in the lobby of the South Tower. A button at the desk enables fire safety directors to deliver announcements over the public address system. (Dwyer and Flynn 2005, pp. 26)
Identity of Person Who Ordered Evacuation Unclear - The new advice, for tenants to evacuate, does “not correspond to any prewritten emergency instruction,” according to the 9/11 Commission Report. (9/11 Commission 7/24/2004, pp. 289) It is unclear who told Hayes to make the announcement giving this advice. George Tabeek, the Port Authority’s security manager for the WTC, contacted the fire command desks in the Twin Towers immediately after Flight 11 hit the North Tower, with instructions about what to do. His orders for Hayes, however, were to “keep people inside the South Tower” (see Shortly After 8:46 a.m. September 11, 2001). (Grant 9/6/2011)
Police Commander Called for Evacuation of WTC - Captain Anthony Whitaker, the Port Authority Police Department (PAPD) commanding officer at the WTC, called for the evacuation of the WTC at 9:00 a.m. (see 8:59 a.m.-9:02 a.m. September 11, 2001). However, his instruction was given over PAPD radio channel W, “which could not be heard by the deputy fire safety director in the South Tower,” according to the 9/11 Commission Report. (Murphy 2002, pp. 184-185; 9/11 Commission 7/24/2004, pp. 293; National Institute of Standards and Technology 9/2005, pp. 201) Furthermore, according to the Port Authority, deputy fire safety directors do not generally take direct orders from the PAPD under the regular chain of command. Therefore, the 9/11 Commission Report will state, it is “not known if [Hayes] received the order by the PAPD to evacuate the complex.” (9/11 Commission 7/24/2004, pp. 544)
Fire Department Responsible for Ordering Evacuations - According to New York Times reporters Jim Dwyer and Kevin Flynn, “The authority to order an evacuation during a fire normally rests with the fire department.” (Dwyer and Flynn 2005, pp. 79) In a phone call with his counterpart in the North Tower, at 8:49 a.m., Hayes in fact said he would wait to hear from “the boss from the fire department or somebody” before ordering an evacuation of the South Tower (see 8:49 a.m. September 11, 2001). (Port Authority of New York and New Jersey 9/11/2001 pdf file; 9/11 Commission 7/24/2004, pp. 287; Dwyer and Flynn 2005, pp. 27) But whether someone from the fire department told Hayes to order an evacuation is unknown. It is also unclear how long announcements, advising an evacuation, continue for. Hayes and his counterpart in the North Tower are “making announcements that the situation was serious and that occupants should evacuate immediately” for “[a]s long as the [fire alarm system] was still operational,” according to Fire Engineering magazine. (Murphy 11/1/2002) However, the 9/11 Commission Report will state, “Evidence suggests that the public address system [in the South Tower] did not continue to function after the building was hit.” This would mean no announcements go out after 9:03 a.m., when Flight 175 hits the tower (see 9:03 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 295) By the time the South Tower collapses (see 9:59 a.m. September 11, 2001), out of around 8,540 people who were originally in the building, 7,940 (93 percent) have made it out and will survive, according to the National Institute of Standards and Technology. (National Institute of Standards and Technology 9/2005)

Flight 175 hits the WTC South Tower. The picture was taken from a traffic helicopter.Flight 175 hits the WTC South Tower. The picture was taken from a traffic helicopter. [Source: WABC 7/ Salient Stills]Flight 175 hits the South Tower of the World Trade Center (Tower Two). Seismic records pinpoint the time at six seconds before 9:03 a.m. (rounded to 9:03 a.m.). Hijackers Marwan Alshehhi, Fayez Ahmed Banihammad, Mohand Alshehri, Hamza Alghamdi, and Ahmed Alghamdi presumably are killed instantly, and many more in the tower will die over the next few hours. (New York Times 9/12/2001; CNN 9/12/2001; CNN 9/17/2001; 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; Associated Press 8/21/2002; Moore and Cauchon 9/2/2002) According to the NIST report, the crash time is 9:02:59. (National Institute of Standards and Technology 9/2005, pp. 38) According to the 9/11 Commission Report, the crash time is 9:03:11. (9/11 Commission 7/24/2004, pp. 8) Millions watch the crash live on television. The plane strikes the 77th through 85th floors in the 110-story building. Approximately 100 people are killed or injured in the initial impact; 600 people in the tower eventually die. The death toll is far lower than in the North Tower because about two-thirds of the South Tower’s occupants have evacuated the building in the 17 minutes since the first tower was struck. (Cauchon 12/20/2001; National Institute of Standards and Technology 9/2005, pp. 5-9, 41) The combined death toll from the two towers is estimated at 2,819, not including the hijackers. (Associated Press 8/21/2002) The impact severs some columns on the south side of the South Tower. Each of the Twin Towers 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 is traveling at an estimated speed of around 500 mph (see October 2002-October 2005), severs 33 of the building’s 236 perimeter columns and damages another one. (National Institute of Standards and Technology 9/2005, pp. 39) The perimeter columns bear about half of the tower’s weight, so the damage to them reduces the tower’s ability to bear gravity loads by about 7.1 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 be able to damage the core even after crashing through the exterior wall (see 8:46 a.m. September 11, 2001). (National Institute of Standards and Technology 9/2005, pp. 107) According to NIST’s base case model, five of the core columns are severed and another five suffer some damage. (National Institute of Standards & Technology 9/2005, pp. 235 pdf file) This may reduce the tower’s ability to bear loads by a further approximately 8 percent, meaning that the aircraft impact accounted for a loss of about 15 percent of the building’s strength. This damage will be cited as an event contributing to the building’s collapse after 9/11 (see October 23, 2002 and October 19, 2004). NIST’s base case estimate of damage to the North Tower’s core will be similar, even though the aircraft impact there was dissimilar (see 8:46 a.m. September 11, 2001). Flight 11 hit the North Tower’s core head on, whereas Flight 175 only hits the corner of the South Tower’s core. (National Institute of Standards and Technology 9/2005, pp. 20-23, 38-41) In addition, some of the fireproofing on the steel columns and trusses may be dislodged (see 8:46 a.m. September 11, 2001). (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 the National Institute of Standards and Technology (NIST) will try to estimate the damage to fireproofing using a series of computer models. Its severe case model (see (October 2002-October 2005)) will predict that 39 of the 47 core columns are stripped of their fireproofing on one or more floors and that fireproofing is stripped from trusses covering 80,000 ft2 of floor area, the equivalent of about two 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. 41) According to NIST, less fireproofing is stripped from the North Tower (see 8:46 a.m. September 11, 2001).

Larry Cockell.Larry Cockell. [Source: Saint Louis University]Brian Stafford, the director of the Secret Service, activates the Director’s Crisis Center (DCC) at Secret Service headquarters in order to manage the Secret Service’s response to the terrorist attacks. (Secret Service 9/11/2001; United States Secret Service 10/1/2001) The DCC is located on the ninth floor of the Secret Service headquarters in Washington, DC, and is used to direct operations in emergencies. (Kessler 2009, pp. 23-24) It is unclear exactly when it is activated. Larry Cockell, the deputy director of the Secret Service, will later say that the crisis center is activated after he receives “a call from the duty desk” informing him “that we were getting intelligence that there was a potential hijacking.” (Peter Schnall 10/24/2004) According to a Secret Service timeline provided to the 9/11 Commission, it is activated at 9:00 a.m. (Secret Service 9/11/2001) But Danny Spriggs, the assistant director of the Secret Service’s Office of Protective Operations, will say that Stafford makes the decision to activate the DCC “after the two airplanes crashed into the World Trade Center towers,” meaning some time after 9:03 a.m. (United States Secret Service 10/1/2001) Stafford apparently thought the first crash at the WTC (see 8:46 a.m. September 11, 2001) was accidental, and only realized a terrorist attack was under way when the second plane hit the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001). “I thought and hoped that it was an accident,” he will recall. “But when the second one hit, we knew that it wasn’t.” (Peter Schnall 10/24/2004) Spriggs will say that when he arrives at the DCC, at around 9:35 a.m., Stafford and Cockell are already there (see (9:35 a.m.) September 11, 2001). (United States Secret Service 10/1/2001) However, although the DCC is activated now, the Secret Service will not implement an “emergency call-up” of all its personnel until after 9:37 a.m., when the Pentagon is hit (see After 9:37 a.m. September 11, 2001). (Ragavan 12/1/2002)

Michael Miller.Michael Miller. [Source: US Navy]A number of White House staffers who are visiting New York make their way back to Washington, DC, following the attack on the Pentagon. About 15 members of the White House staff, including Joseph Hagin, the deputy chief of staff for operations, and Captain Michael Miller, the deputy director of the White House Military Office, are in New York conducting the “survey trip” for President Bush’s appearance at the United Nations General Assembly later in the month (see September 10, 2001).
Staffers Learn of Crashes while Visiting US Mission to the UN - Earlier this morning, they went to the US Mission to the United Nations for some preliminary meetings with the mission staff about the president’s forthcoming visit. In a conference room there, shortly after Flight 11 hit the World Trade Center (see 8:46 a.m. September 11, 2001), Miller informed Hagin of the crash. After seeing the early coverage of the incident on television, Hagin called the military aide who is with the president in Sarasota, Florida, to check if he was aware of what had happened. The military aide told him, “We’re on it.”
Staffers Taken to Police Station - After the White House staffers watched the second plane hitting the WTC live on TV, a State Department security officer told Hagin: “Sir, you need to get out of here as quickly as possible. There are reports of other planes inbound into the city.” The White House staffers were then taken by the Secret Service to a police station in Midtown Manhattan, where it was thought they would be safe. From there, Hagin called Josh Bolten, the deputy White House chief of staff for policy, who is at the White House. As the attacks were considered to be “just a New York incident” at that time, Hagin will later recall, Bolten and his colleagues decided that Hagin “should go down and be with the mayor, and… be the federal face in New York for the time being.”
Some Staffers Fly toward Nebraska to Meet President - The New York City police and the Secret Service had been trying to work out how to get Hagin to Ground Zero. But when the Pentagon is attacked at 9:37 a.m. (see 9:37 a.m. September 11, 2001), they decide that the White House staffers should return to Washington. The staffers are driven to Dover Air Force Base in Delaware. There, they are split up. Eight of them, including Hagin, get on a military plane and head toward Offutt Air Force Base in Nebraska to meet the president, who has been taken to the base (see 2:50 p.m. September 11, 2001). However, as they are flying over Missouri, they learn that Bush has decided to come back to Washington (see (4:00 p.m.) September 11, 2001 and (4:33 p.m.) September 11, 2001). Therefore, their plane turns around and heads to the capital.
Hagin and Other Staffers Return to White House - After they land at Andrews Air Force Base, just outside Washington, the staffers are driven to the White House. The time when they arrive there is unstated, but it is presumably around late afternoon or early evening. At the White House, Hagin goes to work immediately. (National Journal 8/31/2002; Wilkinson 1/20/2003) As the deputy chief of staff for operations, he is a key member of the White House staff. He is responsible for the management and administrative functions of the White House, plans all of the president’s travel, and oversees the president’s schedule. (Korte 10/10/2002; Abramowitz 7/4/2008) Hagin will recall that, after reaching the White House, he is “very involved in the continuity of government and just how, operationally, we were going to deal with this.” He will remain at the White House for the next two days. (National Journal 8/31/2002; Wilkinson 1/20/2003)

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)

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)

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 pdf file; 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 pdf file; 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)

James Nieckarz.James Nieckarz. [Source: Maryknoll Mission Archives]Police officers order members of the public to get away from the World Trade Center, telling them the Twin Towers are in danger of collapsing. Shanthy Nambiar, a reporter for BridgeNews in New York, is standing on Vesey Street, beneath Building 7 of the WTC. She hears someone shout, “You guys shouldn’t be in this area.” She will later recall, “Police officers ordered people to start fleeing the area, saying the towers were in danger of collapse.” She runs north one block and then sees the South Tower coming down (see 9:59 a.m. September 11, 2001). (Casey 2001, pp. 156) Priest Father James Nieckarz is also standing outside Building 7 around this time. He will recall that a couple of police officers come along, shouting out to everyone on the street: “Everyone run to the north. The tower is shaking and may come down.” Nieckarz goes around Building 7 and then, as he is walking north, hears “a loud rumbling roar” behind him as the South Tower collapses. (Milisic 9/12/2001; United States Conference of Catholic Bishops 9/2003, pp. 15) Why the police officers encountered by Nambiar and Nieckarz believe the Twin Towers are in danger of collapsing is unclear. Although a New York City Police Department (NYPD) helicopter has reported “large pieces” falling from the South Tower (see (9:49 a.m.) September 11, 2001), the 9/11 Commission Report will state, “Prior to 9:59, no NYPD helicopter pilot predicted that either tower would collapse.” (9/11 Commission 7/24/2004, pp. 304)

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)

William Zika.William Zika. [Source: William Zika]Inspector Joseph Morris, a commanding officer with the Port Authority Police Department (PAPD), gives the order to move the PAPD’s mobile command post further away from the World Trade Center and thereby likely prevents those in it being killed or seriously injured when the North Tower collapses. (Keegan and Davis 2006, pp. 100-101) The mobile command post is a vehicle the size of a bus that was dispatched from the PAPD’s headquarters in Jersey City when word reached there about the crash at the North Tower (see 8:46 a.m. September 11, 2001). It arrived near the Twin Towers at around 9:30 a.m. and was parked just north of the intersection of West and Vesey Streets, next to Building 6 of the WTC. (Morris 1/2002 pdf file; Accardi 3/7/2002 pdf file; Keegan and Davis 2006, pp. 8, 100) After the South Tower collapsed (see 9:59 a.m. September 11, 2001), Port Authority personnel gathered at the vehicle to regroup.
Police Captain Says the North Tower Will Collapse - At some point, Captain Anthony Whitaker, the PAPD commanding officer at the WTC, comes to the mobile command post and warns that the North Tower is in danger of collapsing, like the South Tower did. (9/11 Commission 5/18/2004 pdf file) He is convinced that the North Tower is “about to come down any minute,” he will later recall. (Murphy 2002, pp. 187) He approaches Morris outside the vehicle and urgently tells him that “the area is not safe, because [the North Tower] is coming down.” (9/11 Commission 11/10/2003) Presumably in response to Whitaker’s warning, Morris decides that the vehicle needs to be moved to somewhere safer. “I knew that the mobile command post must be moved north on West Street,” he will state. (9/11 Commission 5/18/2004 pdf file) He gets into the vehicle and gives the order, “Move the command post.”
Instruction Is Given to Move the Command Bus - Those in the vehicle groan in frustration when they hear Morris’s order, since “[p]eople were in motion, the command post was almost operational, [and] no one wanted to disconnect everything and start all over,” according to a book by Lieutenant William Keegan of the PAPD. But Morris ignores their objections, points to a location on a map of the city, and says, “Move it there.” (9/11 Commission 11/10/2003; Keegan and Davis 2006, pp. 100)
Fire Trucks Move to Allow the Vehicle to Drive Away - Sergeant William Zika, who is at the mobile command post with Morris, talks with Police Officer Frank Accardi, the vehicle’s driver, and Police Officer Thomas Kennedy “about moving the bus further north to a safer location.” (Zika 3/9/2002) But before they can start the vehicle, Accardi and Kennedy have to clean its air filter, which became clogged with debris when the South Tower collapsed. (Merrill 2011, pp. 232; Law Officer 8/16/2011) Meanwhile, Whitaker starts yelling at the fire trucks parked nearby to free up space so the vehicle can get away. (Murphy 2002, pp. 187)
Moving the Command Bus Reportedly Saves Lives - Accardi then starts the mobile command post, moves it north, and parks it on West Street, between Murray and Chambers Streets. The North Tower of the WTC will collapse while the vehicle is at this location, at 10:28 a.m. (see 10:28 a.m. September 11, 2001). (Accardi 3/7/2002 pdf file; 9/11 Commission 11/10/2003; 9/11 Commission 5/18/2004 pdf file) The tower will crush Building 6 of the WTC, “covering the exact spot where the command post had stood with tons of debris,” Keegan will write. This will mean that Morris’s order to move the vehicle “prevented the deaths of everyone in the PAPD command post,” according to Keegan. (Keegan and Davis 2006, pp. 100-101)

A helicopter flying above the burning World Trade Center.A helicopter flying above the burning World Trade Center. [Source: History Channel]Minutes after the collapse of the south WTC tower, police helicopters fly near the North Tower to check on its condition. The pilot of one helicopter radios, “About 15 floors down from the top, it looks like its glowing red,” and adds, “It’s inevitable.” Seconds later, another helicopter pilot reports, “I don’t think this has too much longer to go. I would evacuate all people within the area of that second building.” While these warnings are relayed to police officers, fire and rescue personnel do not hear them, as they operate on a different radio system. (Dwyer, Flynn, and Fessenden 7/7/2002; Fisher 8/25/2005; National Institute of Standards and Technology 9/2005, pp. 224) The North Tower will collapse 21 minutes later (see 10:28 a.m. September 11, 2001).

Andi Ball.Andi Ball. [Source: White House]Laura Bush, the president’s wife, and her entourage are driven from Capitol Hill to the Secret Service headquarters in Washington, DC, for their own security, but their journey is slowed by the heavy traffic. (Woodward 2002, pp. 17; National Journal 8/31/2002; Kessler 2006, pp. 136; Bush 2010, pp. 200-201) Bush has been at the Russell Senate Office Building in Washington, where she was originally scheduled to testify before a Senate committee. (McCaleb 9/12/2001; Woodward 2002, pp. 16-17) Her Secret Service agents have said they are going to take the first lady and her staff to a secure location. (Kessler 2006, pp. 136) After the Secret Service emergency response team arrived for her, Bush was escorted out of the Russell Senate Office Building and to her limousine (see (Shortly After 10:00 a.m.) September 11, 2001). Bush and those accompanying her leave Capitol Hill at 10:10 a.m., according to Noelia Rodriguez, the first lady’s press secretary.
Agents with Guns Drawn Protect Motorcade - Secret Service agents protect Bush’s motorcade with their guns as it heads to the secure location. Ashleigh Adams, the first lady’s deputy press secretary, will later recall, “It felt like we were in a war, because the Secret Service was driving next to the motorcade and they were hanging out of the windows with their machine guns out.” She will add that she has “been around the agents” before, but has “never seen them with their guns.”
Motorcade Delayed by Traffic - However, the motorcade is slowed by the heavy traffic. Bush will describe, “Outside our convoy windows, the city streets were clogged with people evacuating their workplaces and trying to reach their own homes.” Rodriguez will say, “In the car, we seemed to be going in slow motion.” (National Journal 8/31/2002; Bush 2010, pp. 200) “The traffic was so bad that everything was stopped,” Andi Ball, Bush’s chief of staff, will recall. One of the Secret Service agents escorting Bush and her staff will later say a car sideswiped them during the journey.
Secure Location Is Secret Service Headquarters - The “secure location” that Bush and her staff are being taken to turns out to be the Secret Service headquarters. (Kessler 2006, pp. 136) The Secret Service headquarters, according to journalist and author Ronald Kessler, is “an anonymous nine-story tan brick building on H Street at Ninth Street NW in Washington.” (Kessler 2009, pp. 23) It is located a few blocks from the White House. After the Oklahoma City bombing in 1995 (see 8:35 a.m. - 9:02 a.m. April 19, 1995) it was reinforced to survive a large-scale blast. Bush and her entourage arrive there through an underground entrance. (Bamford 8/23/2009; Bush 2010, pp. 200-201)
Journey Reportedly Takes 45 Minutes - The exact time they arrive at is unclear. According to Washington Post reporter Bob Woodward, “In the traffic jam from the Capitol, it took 45 minutes to get [Bush] to Secret Service headquarters.” This would mean the first lady arrives there at around 10:55 a.m. (Woodward 2002, pp. 17) However, Bush will write that she watches the North Tower of the World Trade Center collapsing “live in front of my eyes,” on a screen at the headquarters. (Bush 2010, pp. 201) If this is correct, she must arrive at the headquarters sometime before 10:28 a.m., when the North Tower comes down (see 10:28 a.m. September 11, 2001). (9/11 Commission 7/24/2004, pp. 311) White House spokespeople will refuse to disclose where the first lady has been taken to, only saying she is at a “secure location.” (Associated Press 9/11/2001; McCaleb 9/12/2001; CNN 9/11/2002)

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 pdf file; 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 pdf file) 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 North Tower collapses in a matter of seconds.The North Tower collapses in a matter of seconds. [Source: Ray Stubblebine/ Reuters/ Landov] (click image to enlarge)The North Tower of the World Trade Center tilts to the south and then collapses. Its north side was hit by Flight 11 at 8:46, 102 minutes earlier. (CNN 9/12/2001; New York Times 9/12/2001; MSNBC 9/22/2001; Kim and Baum 2002 pdf file; Associated Press 8/21/2002; National Institute of Standards and Technology 9/2005, pp. 33) After the antenna starts to move (see (10:28 a.m. September 11, 2001)), the next sign that the top section of the building is moving downward is on floor 98, at the top of the impact zone. (National Institute of Standards and Technology 9/2005, pp. 22, 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 death toll could have been much worse—an estimated 15,000 people made it out of the WTC to safety after 8:46 a.m. (St. Petersburg Times 9/8/2002)

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.

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).

Jeffrey Scott Shapiro.Jeffrey Scott Shapiro. [Source: University of Florida]Larry Silverstein, who recently took over the lease of the World Trade Center complex (see July 24, 2001), discusses possibly bringing down WTC Building 7 in a controlled demolition in a telephone conversation with his insurance carrier, according to a reporter who is at the WTC site this afternoon. (Shapiro 4/22/2010) WTC 7 is a 47-story office building located just north of the Twin Towers. The National Institute of Standards and Technology (NIST) will say it suffered some structural damage (see 10:28 a.m. September 11, 2001) when the North Tower collapsed (see 10:28 a.m. September 11, 2001) and it has fires on several floors (see (10:28 a.m.-5:20 p.m.) September 11, 2001). It will collapse at 5:20 p.m., apparently becoming the first tall building ever to come down primarily as a result of fire (see (5:20 p.m.) September 11, 2001). (National Institute of Standards and Technology 11/2008, pp. xxxv-xxxvi)
Silverstein Allegedly Wants WTC 7 Demolished - Investigative reporter Jeffrey Scott Shapiro, who is at the scene of the attacks in New York, will later recall: “Shortly before [WTC 7] collapsed, several NYPD officers and Con Edison workers told me that Larry Silverstein… was on the phone with his insurance carrier to see if they would authorize the controlled demolition of the building, since its foundation was already unstable and expected to fall. A controlled demolition would have minimized the damage caused by the building’s imminent collapse and potentially save lives.” Shapiro will add: “Many law enforcement personnel, firefighters, and other journalists were aware of this possible option. There was no secret.” (Shapiro 4/22/2010) Preparing a large building for demolition usually takes weeks, or even months. This time is spent on operations such as wrapping concrete columns to ensure pieces do not fly off. (Dang 2/26/1995; Loizeaux 12/1996; Ruggiero 2/24/2005)
Discussion of Demolition Later Denied - Silverstein will later recall discussing WTC 7 over the phone with the commander of the New York Fire Department, and telling him, “We’ve had such terrible loss of life, maybe the smartest thing to do is pull it” (see After 12:00 Noon September 11, 2001), but a spokesman will subsequently claim that Silverstein was referring to withdrawing firefighters from the building, not bringing WTC 7 down with explosives. (US Department of State 9/16/2005; BBC 7/4/2008) At the end of a three-year investigation into the building’s collapse, NIST will say WTC 7 “did not collapse from explosives,” but critics will dispute this conclusion (see August 21, 2008). (Barrett 8/21/2008; Lipton 8/21/2008)

Following the attacks, there is no agreement on the speed with which the Twin Towers of the World Trade Center collapsed on 9/11 (see 9:59 a.m. September 11, 2001 and 10:28 a.m. September 11, 2001). The 9/11 Commission says that the South Tower collapsed in “ten seconds” and the National Institute of Standards and Technology says that tops of the buildings came down “essentially in free fall.” (9/11 Commission 7/24/2004, pp. 305; National Institute of Standards and Technology 9/2005, pp. 146) In the dispute over the reason for the WTC’s collapse after 9/11, it is claimed that, if the towers fell in ten seconds, then this is evidence they were destroyed by explosives. For example, David Ray Griffin, a theologian and outspoken critic of commission’s report, writes, “For a 1,300-foot building, however, ten seconds is almost free-fall speed. But if each floor produced just a little resistance, so that breaking through each one took half a second, the collapse of all those floors—80 or 95 of them—would have taken 40 to 47 seconds. Can we really believe that the upper part of the buildings encountered virtually no resistance from the lower part?” (Griffin 2004, pp. 16) But according to Canadian scientist Frank Greening, who studies the Twin Towers’ collapse, the freefall time would be about 9.6 seconds, and he calculates that it takes longer for the buildings to fall—twelve to thirteen and a half seconds—and states this does not indicate that explosives were used. (Canadian Broadcasting Corporation 8/25/2005)

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)

Major General Paul Weaver, director of the Air National Guard, provides reporters with details of the 9/11 attacks and the US military’s response to the hijackings. Speaking at the Pentagon, Weaver gives reporters a detailed account of what happened on September 11. He says Air National Guard planes responded to the hijackings on orders from NORAD’s Northeast Air Defense Sector (NEADS), which was alerted to the hijackings by the Federal Aviation Administration (FAA).
Fighters Took Off Too Late to Catch Flight 175 - Weaver says that at 8:53 a.m., seven minutes after Flight 11 crashed into the North Tower of the World Trade Center (see 8:46 a.m. September 11, 2001), two F-15 fighter jets took off from Otis Air National Guard Base in Cape Cod, Massachusetts, in pursuit of Flight 175, the second plane to be hijacked (see 8:46 a.m. September 11, 2001 and 8:53 a.m. September 11, 2001). However, Weaver says, the FAA had only told NEADS that “there was an airplane that had a problem,” and at that time it was unclear if Flight 175 had been hijacked. He says that although the fighters flew at over 500 miles per hour, they were unable to catch up with Flight 175 before it hit the South Tower of the WTC at 9:03 a.m. (see 9:03 a.m. September 11, 2001).
More Fighters Were Launched Just before Pentagon Was Hit - Weaver says Flight 77, the third aircraft to be hijacked, flew west for 45 minutes and then turned east, and its transponder was turned off. He does not claim that the military received notice that it had been hijacked, but says NEADS scrambled F-16 fighters that were on alert at Langley Air Force Base in Virginia at 9:35 a.m. (see 9:24 a.m. September 11, 2001 and (9:25 a.m.-9:30 a.m.) September 11, 2001). Two minutes later, at 9:37 a.m., the Pentagon was hit (see 9:37 a.m. September 11, 2001). The F-16s, he says, subsequently remained on patrol over the Pentagon.
No Fighters Took Off to Intercept Flight 93 - Weaver says no fighters were scrambled to chase after 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). “There was no notification for us to launch airplanes,” he tells the reporters. “We weren’t even close.” (Whittle 9/14/2001; Farmer 2009, pp. 244) (However, also on this day, Deputy Defense Secretary Paul Wolfowitz contradicts Weaver’s claim. He tells PBS’s NewsHour, “[W]e were already tracking in on that plane that crashed in Pennsylvania,” and adds, “[T]he Air Force was in a position to do so [i.e. shoot Flight 93 down] if we had had to.” (Wolfowitz 9/14/2001; Farmer 2009, pp. 245) ) Weaver says that even if fighters had caught up with the hijacked planes, they may have been unable to stop them reaching their targets. “You’re not going to get an American pilot shooting down an American airliner,” he says. “We don’t have permission to do that.” According to Weaver, only the president can issue an order to shoot down an American airliner. (Whittle 9/14/2001)
Weaver's Account Is the 'Most Accurate' Prior to the 9/11 Commission's Investigation - The account he gives to reporters today, according to John Farmer, the senior counsel to the 9/11 Commission, will be “the last public statement uttered by General Weaver on the subject and proved to be the most accurate account of events issued until the 9/11 Commission’s investigation.” (Farmer 2009, pp. 245) Apparently after Weaver issues his statement to the reporters, an Air Force spokesman, speaking on condition of anonymity, adds that no regular Air Force planes were scrambled during the 9/11 attacks, “because continental air defense is the mission of the Air National Guard.” He says regular Air Force fighters “have air superiority as their mission,” which means they train “to deploy somewhere where we are engaged in hostile action and secure the skies.” These fighters, according to the spokesman, “ordinarily are not ready to fly on short notice and their pilots are not on standby to defend the United States.” (Whittle 9/14/2001)
Pentagon Has Been Slow to Answer Questions about Response to Hijackings - The Washington Post will comment, “Questions about the time it took US military planes to respond to the threat of several hijacked aircraft speeding toward the nation’s financial and military centers have dogged the Pentagon since the attacks.” It will add, “Top Pentagon officials 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) The previous day, Air Force General Richard Myers was questioned about the military’s response to the 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) NORAD will release its own timeline of the events of September 11 and its response to the hijackings on September 18 (see September 18, 2001). (North American Aerospace Defense Command 9/18/2001; 9/11 Commission 7/29/2004)

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)

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)

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)

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)

Shyam Sunder.Shyam Sunder. [Source: NIST]The National Institute of Standards and Technology (NIST) releases nearly 500 pages of documents, detailing the latest findings of its investigation of the WTC collapses on 9/11. These include its hypotheses for the collapse sequences of each of the Twin Towers; details of their analysis of interviews with nearly 1,200 building occupants, emergency responders, and victims’ relatives; and information from their analysis of the emergency response and evacuation procedures. Their investigation into the collapses is based upon an analysis of thousands of photos and videos, examination of many of the elements used to construct the towers, and computer-enhanced modeling of the plane impacts and the spreading of the fires. Their hypothesis is that the towers collapsed ultimately due to the fires they suffered: As the fires burned, the buildings’ steel core columns buckled and shortened. This shifted more load to the buildings’ perimeter columns, which were already affected by the heat of the fires, and caused them to give way under the increased stress. Investigators have conducted a test with a reconstructed section of the WTC floor, and found that the original fireproofing was sufficient to meet the New York City building code. They say that had a typical office fire occurred in the towers, without the structural damage and the loss of some fireproofing caused by the plane impacts, it is likely the buildings would have remained standing. Lead investigator Dr. Shyam Sunder says, “The buildings performed as they should have in the airplane impact and extreme fires to which they were subjected. There is nothing there that stands out as abnormal.” NIST’s theories of why the WTC buildings collapsed conflict with an earlier investigation by FEMA, which claimed the collapse of the North Tower had begun in its core, rather than its perimeter columns (see May 1, 2002). (National Institute of Standards and Technology 10/19/2004; Lipton 10/20/2004)

The National Institute of Standards and Technology (NIST), which is conducting an investigation into the WTC collapses on 9/11, releases three new reports. Investigators say that the Twin Towers would probably have remained standing if the fireproofing material that surrounded the buildings’ structural steel had not been stripped away when the planes hit. Their report states that “[t]he jet fuel, which ignited the fires, was mostly consumed within the first few minutes after impact. The fires that burned for almost the entire time that the buildings remained standing were due mainly to burning building contents and, to a lesser extent, aircraft contents, not jet fuel.” However, they claim, without the loss of fireproofing during the planes’ impacts, the heat from the fires would have been insufficient to cause the buildings to collapse. They say that although the architects had in 1964 tested the impact of a Boeing 707 airplane crashing into the 80th floor of one of the towers, they never envisioned the intense fires that ensued. NIST also reports that the time taken by survivors from the North Tower to descend a flight of stairs was about double the slowest evacuation speed estimated in a standard fire engineering text. They state: “approximately 87 percent of the WTC tower occupants, including more than 99 percent below the floors of impact, were able to evacuate successfully.” However, they say, if each tower had been full when they were hit, as many as 14,000 people could have died. (National Institute of Standards and Technology 4/5/2005; Matthews 4/5/2005; Williams 4/5/2005; Barrett 4/6/2005)

Both towers of the World Trade Center tilted to one side before beginning to fall on 9/11 (see 9:59 a.m. September 11, 2001 and 10:28 a.m. September 11, 2001). The National Institute of Standards and Technology, which investigated the collapses (see August 21, 2002), states that the South Tower, which was hit on its south side, tilted about 7-8 degrees to the east and 3-4 degrees to the south, and the North Tower, which was hit on its north side, tilted about 8 degrees to the south, before starting to fall. (National Institute of Standards and Technology 9/2005, pp. 300, 308 pdf file) However, these findings are criticized by Canadian scientist Frank Greening. After examining photo and video evidence, Greening says that the South Tower tilted by no more than two degrees and the North Tower by no more than three degrees before collapse initiation. Greening also says that the tilt angles NIST gives cannot correspond to the downward movement of the towers’ walls NIST claims before they started to fall, and points out that the tilt angles NIST uses are inconsistent throughout its reports. Though Greening agrees with NIST that the towers were destroyed by the plane impacts and fire damage, he concludes that its computer model is “highly inaccurate and therefore of no value in explaining the demise of the Twin Towers.” (Greening 11/2005 pdf file) Greening is a leading figure in the post-9/11 dispute over why the WTC collapsed and publishes a series of papers dealing with various aspects of the Twin Towers’ collapse. For example, a CBC documentary uses Greening for analysis of the WTC’s fall. (Canadian Broadcasting Corporation 8/25/2005)

National Institute of Standards and Technology (NIST) releases a 12-page appendix to its final reports on the WTC collapses (see October 26, 2005) detailing tests it conducted on samples of the type of fireproofing used in the WTC. An earlier NIST report had concluded that loss of fireproofing was a major factor in the collapses (see April 5, 2005). The appendix was not included in earlier drafts of the report (see June 23, 2005) (National Institute of Standards and Technology 6/23/2005 pdf file; National Institute of Standards & Technology 9/2005, pp. 263-274 pdf file; National Institute of Standards and Technology 9/2005, pp. 149) NIST conducted a series of fifteen tests. In the tests projectiles were fired at fireproofing mounted on 12 inch x 12 inch plates, and steel bars with a one inch diameter. The fireproofing used in the tests was Blazeshield DC/F, one of the two grades of fireproofing used on the impact floors. In thirteen of the tests the projectiles were buckshot, which was fired at the steel samples from a modified shotgun at a distance of 29.5 ft. The other two tests used steel bolts and hexagon nuts, fired with less velocity and at closer range. According to NIST, “The test results support the assumption that, within the debris field created by the aircraft impact into WTC 1 and WTC 2, the SFRM [i.e., fireproofing] used for thermal insulation of structural members was damaged and dislodged.” (National Institute of Standards & Technology 9/2005, pp. 83, 263-274 pdf file)


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