9/11 hijackers Khalid Almihdhar, Nawaf Alhazmi, and Salem Alhazmi leave Saudi Arabia after obtaining new passports and US visas there (see March 21, 1999, April 4, 1999, April 6, 1999, and April 3-7, 1999). According to the 9/11 Commission, their passports contain an “indicator of extremism” that is “associated with al-Qaeda.” [9/11 Commission, 8/21/2004, pp. 9, 33 ] According to author James Bamford, the indicator is a “secret coded indicator, placed there by the Saudi government, warning of a possible terrorist affiliation.” [Bamford, 2008, pp. 58-59] The Saudi government reportedly uses this indicator to track some of the Saudi hijackers before 9/11 “with precision” (see November 2, 2007). Almihdhar and Nawaf Alhazmi apparently return to Afghanistan to discuss an attack on the US. [9/11 Commission, 7/24/2004, pp. 155] Salem Alhazmi’s destination is unknown. He will be reported to be in Malaysia (see January 5-8, 2000) and Afghanistan (see Summer 2000) the next year. Almihdhar and Nawaf Alhazmi are placed on the Saudi terrorist watch list later this year (see Late 1999).