Security cameras at Washington’s Dulles International Airport capture the alleged hijackers of Flight 77 checking in at the airport and passing through a security screening checkpoint. [Federal Bureau of Investigation, 9/19/2001; 9/11 Commission, 4/6/2004 ] A surveillance camera located above the British Airways ticket counter points toward the American Airlines ticket counter, and therefore records alleged hijackers Nawaf Alhazmi and Salem Alhazmi when they check in at the airport (see 7:29 a.m. September 11, 2001). [Federal Bureau of Investigation, 9/25/2001] Another surveillance camera located by the British Airways ticket counter also points toward the American Airlines ticket counter, and records alleged hijackers Khalid Almihdhar and Majed Moqed when they check in (see 7:15 a.m. September 11, 2001). [Federal Bureau of Investigation, 9/19/2001; Federal Bureau of Investigation, 9/19/2001] All five of the alleged hijackers of Flight 77 are recorded on video as they go through a security checkpoint at the airport (see 7:18 a.m. September 11, 2001, (Shortly Before 7:35 a.m.) September 11, 2001, and 7:36 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 3; 9/11 Commission, 8/26/2004, pp. 27] Dulles Airport is the only one of the three airports used by the hijackers this morning that has videotaping equipment in use at its security checkpoints. Consequently, William Johnstone, a member of the 9/11 Commission staff, will later note, “the most specific information that exists about the processing of the 9/11 hijackers is information about American Airlines Flight 77,” which will take off from Dulles Airport this morning (see (8:20 a.m.) September 11, 2001). [9/11 Commission, 1/27/2004] In 2004, news organizations will receive a copy of a surveillance video apparently showing the alleged hijackers passing through a security checkpoint at Dulles Airport before boarding Flight 77. The Associated Press will describe the video as “grainy” and report that details are “difficult to distinguish.” It will note that “[n]o knives or other sharp objects are visible” on the video. [Associated Press, 7/22/2004]