Between May 7 and June 1, 2001: 9/11 Hijacker Alhaznawi Enters Saudi Arabia, Possibly Tracked by Saudi Authorities

9/11 hijacker Ahmed Alhaznawi enters Saudi Arabia. The exact date on which he does so is unknown, but it must be between May 7, when he arrives in the United Arab Emirates from Pakistan (see April 11-June 28, 2001) and June 1, when he leaves Saudi Arabia (see June 1, 2001). [Federal Bureau of Investigation, 10/2001, pp. 151 ; US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006, pp. 42-50 ] According to the 9/11 Commission, Alhaznawi may have had a passport with an indicator of Islamic extremism (see Before November 12, 2000). Such indicators were used by the Saudi authorities to track some of the hijackers before 9/11 (see November 2, 2007).