FBI Director Robert Mueller is alerted to the crash at the World Trade Center during his daily briefing with his senior staff, but he does not initially realize the incident is a terrorist attack. Every morning since Mueller took over as FBI director, just one week ago (see September 4, 2001), the bureau’s leaders have gathered to bring him up to date on their most important investigations. [New Yorker, 9/24/2001; Graff, 2011, pp. 314-315] The briefing today is taking place in the Strategic Information and Operations Center (SIOC), on the fifth floor of the FBI’s headquarters in Washington, DC. [9/11 Commission, 1/21/2004 ] All of the bureau’s assistant directors are in attendance. [New Yorker, 9/24/2001] This morning, the counterterrorism team, headed by Michael Rolince, is giving a presentation on the investigation of the bombing of the USS Cole in Aden, Yemen, in October 2000 (see October 12, 2000). [Graff, 2011, pp. 314-315] Meanwhile, FBI Deputy Director Thomas Pickard, who is in his office at the headquarters, is alerted to what happened in New York by his secretary, who comes in and tells him a plane has just hit the WTC. He turns on the television and sees the coverage of the incident. He then calls Mueller’s secretary and instructs them to get the director out of the SIOC so Mueller can join him in his office. [9/11 Commission, 1/21/2004
] Someone, presumably the secretary, therefore interrupts the briefing in the SIOC and tells its participants about the crash in New York. Mueller apparently does not initially realize a terrorist attack has occurred. “How could a plane not see the tower? It’s so clear out today,” he says. [Graff, 2011, pp. 315] He heads to Pickard’s office and enters it at around 9:00 a.m. [9/11 Commission, 1/21/2004
] Some of the other officials at the briefing will subsequently also head to Pickard’s office and they will see the second crash on television there (see (Shortly After 9:03 a.m.) September 11, 2001). [New Yorker, 9/24/2001; Graff, 2011, pp. 315]