9/11 hijacker Ahmed Alnami departs Saudi Arabia, traveling to the United Arab Emirates. [Federal Bureau of Investigation, 10/2001, pp. 142 ] According to the 9/11 Commission, Alnami may have had a passport with an indicator of Islamic extremism (see April 21, 2001). Such indicators were used by the Saudi authorities to track some of the hijackers before 9/11 (see November 2, 2007).