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Context of 'Summer 1999: NSA Intercepts More of Almihdhar’s Calls'

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The NSA intercepts more calls (see Early 1999) involving Khalid Almihdhar, who is at an al-Qaeda communications hub in Sana’a, Yemen, with his family (see Late August 1998). The identity of the person he is talking to and the content of the intercepts is so sensitive that the whole passage regarding these communications is redacted in the 9/11 Congressional Inquiry’s report. After the redacted passage, the Inquiry comments, “At about the same time, the name [of al-Qaeda leader] Khallad [bin Attash] came to the attention of the NSA for the first time,” so the calls may involve bin Attash in some way. [US Congress, 7/24/2003, pp. 155-6 pdf file] Almihdhar is staying at the communications hub at this time and will stay there later as well (see (Mid-June-Mid-July 2000) and Late October 2000-July 4, 2001).

Entity Tags: Khalid Almihdhar, National Security Agency, Khallad bin Attash

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Security Agency (NSA) intercepts calls between 9/11 hijacker Khalid Almihdhar in the US and an al-Qaeda communications hub in Yemen, but does not notify the FBI that Almihdhar is in the US. However, the NSA disseminates reports about some of the calls, which are made from phones registered to Nawaf Alhazmi (see Spring-Summer 2000). The NSA will later say that it does not usually intercept calls between the US and other countries at this time, as it believes that this should be done by the FBI. Despite this, the NSA acquires information about such calls and provides the information to the FBI in regular reporting and in response to specific requests. The FBI, which has a standing request for such information about any calls between the communications hub in Yemen and the US (see Late 1998), then uses this information in its investigations based on warrants issued under the Foreign Intelligence Surveillance Act. The NSA will later tell the 9/11 Congressional Inquiry the reason the FBI is not notified about Almihdhar is because it does not realize that Almihdhar is in the US. However, no explanation is offered for why the NSA fails to realize this. [US Congress, 7/24/2003, pp. 36, 73-4 pdf file] This explanation will be contradicted by one offered in a 2004 article about the issue that reports the intercepts are not exploited precisely because the NSA knows one of the parties is in the US and therefore does not want to deal with his calls (see Summer 2002-Summer 2004 and March 15, 2004 and After). In addition, the FBI used information gained from intercepted calls to and from the hub in Yemen to make a world map of al-Qaeda’s organization, indicating that the locations talking to the hub could be determined by US intelligence (see Late 1998-Early 2002). [MSNBC, 7/21/2004]

Entity Tags: Federal Bureau of Investigation, National Security Agency

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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