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]
After 9:03 a.m. September 11, 2001: Head of the FBI’s New York Office Calls FBI Director Mueller and Requests Fighters
Barry Mawn, director of the FBI’s New York office, calls FBI Director Robert Mueller sometime after seeing Flight 175 crashing into the World Trade Center and says fighter jets are needed. Mawn was in his office at 26 Federal Plaza in Lower Manhattan when Flight 11 crashed into the North Tower and, in response to the incident, he promptly made his way to the WTC site (see Shortly After 8:46 a.m. September 11, 2001). He was with other officials there when Flight 175 hit the South Tower, at 9:03 a.m. (see 9:03 a.m. September 11, 2001). While he supposedly thought the first crash was accidental, he realizes now that this is terrorism. [Kessler, 2002, pp. 1-2] “At that moment, I think we all knew we were under attack—these are no accidents—that potentially we’re at war here,” he will later comment. [CNN, 2/18/2002] Furthermore, he determines that al-Qaeda is to blame. “At that point I knew it was al-Qaeda,” he will recall. [Wicked Local, 9/15/2011; Treasure Coast Newspapers, 2/18/2013] This conclusion is presumably based on the expertise in terrorism he has acquired in his three decades with the FBI, during which he has been involved in several high-profile terrorism cases. [Washington Post, 10/20/2001; CNN, 2/18/2002] In the 18 months he has spent at the FBI’s New York office, he will say, he and his colleagues have “told everyone… that the biggest threat to the US was al-Qaeda and [Osama] bin Laden.” [Wicked Local, 9/15/2011] Following the second attack, hundreds of FBI agents converge on the WTC site and Mawn instructs some of them to set up a command post. He also tries calling Mueller, who is at the FBI’s headquarters in Washington, DC (see Shortly After 8:48 a.m. September 11, 2001), using his cell phone. His initial attempts are unsuccessful, but he eventually gets through. He tells the FBI director that “the phones [are] down and they needed Air Force jets,” according to journalist and author Ronald Kessler. [Kessler, 2002, pp. 2] It is unclear whether Mueller takes any action in response to this request. Fighters will arrive over Manhattan at 9:25 a.m., according to the 9/11 Commission Report (see 9:25 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 24] However, numerous witnesses on the ground will recall only noticing fighters overhead after 10:00 a.m. (see (9:45 a.m.-10:45 a.m.) September 11, 2001).
Shortly After 9:03 a.m. September 11, 2001: FBI Activates Its Operations Center to Respond to the Attacks
Dale Watson, assistant director of the FBI’s counterterrorism division, activates the Strategic Information and Operations Center (SIOC) at FBI headquarters in Washington, DC, from where the bureau will coordinate its response to the terrorist attacks. Watson learned about the first hijacked plane crashing into the World Trade Center during a briefing in the SIOC attended by the FBI’s assistant directors and Robert Mueller, the bureau’s director (see Shortly After 8:48 a.m. September 11, 2001). Mueller and some of the other officials at the briefing, presumably including Watson, subsequently headed to the office of FBI Deputy Director Thomas Pickard. There, Mueller, Pickard, and the other officials saw the second hijacked plane crashing into the WTC on television (see 9:03 a.m. September 11, 2001). It then became clear to them that this was a terrorist attack.
Deputy Director Says the FBI Needs to Open Its Operations Center – Mueller asks Pickard what they should do in response to the incident and Pickard says they need to open the SIOC. [New Yorker, 9/24/2001; 9/11 Commission, 1/21/2004 ] According to the US government’s Interagency Domestic Terrorism Concept of Operations Plan, “Upon determination of a credible threat,” FBI headquarters is required to activate the SIOC, “to coordinate and manage the national level support to a terrorism incident.” [US Government, 1/2001] Following this protocol, Watson goes to his office and activates the SIOC for crisis mode. [New Yorker, 9/24/2001]
Director Goes to the Operations Center to Manage the Crisis – Mueller and Pickard go to the SIOC to manage the FBI’s response to the attacks. Pickard isolates Mueller in a conference room, restricting access to him so he is better able to stay focused on the decisions ahead. Mueller only took over as FBI director a week ago (see September 4, 2001) and Pickard will later comment, “I was worried that there was going to be this string of people running into the room with news or questions and [Mueller] would be standing there asking them who they were.” [Kessler, 2002, pp. 420; Graff, 2011, pp. 314-316] Meanwhile, a live communications link is established that allows them to listen in as Pentagon and FAA air traffic controllers track suspicious aircraft. [Wall Street Journal, 10/5/2001]
Many Other Officials Go to the Operations Center – Other senior officials and FBI agents also begin pouring into the center, along with representatives from numerous other government agencies, including the CIA, the Defense Intelligence Agency, the FAA, the NSA, and the Secret Service. Assistant Attorney General Michael Chertoff will head to the center, as will Attorney General John Ashcroft, who arrives there early in the afternoon (see (Between 1:00 p.m. and 2:00 p.m.) September 11, 2001). The SIOC will become “the place to be to get information and so everyone wanted to be there,” Ashcroft will comment. [Kessler, 2002, pp. 5, 421; 9/11 Commission, 12/17/2003 ]
Center Is Designed for Dealing with Crises – The SIOC, which opened in 1998 and cost $20 million to build, covers 40,000 square feet on the fifth floor of the FBI headquarters building. [CNN, 11/20/1998] It is “a heavily fortified cluster of offices surrounded by video screens and banks of computer terminals,” according to the New York Times. [New York Times, 11/2/2001] It can function as a 24-hour watch post, a crisis management center, and an information processing center. [Federal Bureau of Investigation, 1/18/2004] It operates around the clock, with at least eight staffers on duty at any one time. It is capable of managing up to five crises at a time and is designed to accommodate up to 450 members of staff during major emergencies. [CNN, 11/20/1998; New Yorker, 9/24/2001]
Center Is Built to Survive Attacks – The center is fortified so those in it can survive a bombing or other kind of attack. [New York Times, 11/2/2001] It has no windows to the street outside and is shielded to prevent electronic signals from entering or leaving it. [CNN, 11/20/1998; Kessler, 2002, pp. 421] Its 225 computer terminals have access to three types of local area networks: the regular FBI network that can connect to the networks of outside agencies; a classified network that operates at the top-secret level; and an even more highly classified Special Compartmented Information network. [Washington Post, 10/14/2001; Federal Bureau of Investigation, 1/18/2004] The many computers and video screens in the center can display broadcasts from US television channels and also TV channels from other countries. [CNN, 11/20/1998]
Center Will Become the ‘Nerve Center’ of the FBI’s Investigation – By the end of the week, the SIOC will be “the headquarters of the government’s response” to today’s attacks, according to journalist and author Garrett Graff. As many as 500 people from 56 different agencies will be working in it. [Kessler, 2002, pp. 421; Military Intelligence Professional Bulletin, 7/1/2002; Graff, 2011, pp. 317] It will become “the nerve center” of the FBI’s investigation of the attacks, according to the Wall Street Journal. [Wall Street Journal, 10/5/2001]
9:10 a.m. September 11, 2001: Counterterrorism ‘Tsar’ Clarke Directs Crisis Response through Video Conference with Top Officials
Around this time, according to his own account, counterterrorism “tsar” Richard Clarke reaches the Secure Video Conferencing Center just off the main floor of the Situation Room in the West Wing of the White House. From there, he directs the response to the 9/11 attacks and stays in contact with other top officials through video links. Clarke claims that on video he can see Defense Secretary Donald Rumsfeld, CIA Director George Tenet, FBI Director Robert Mueller, FAA Administrator Jane Garvey, Deputy Attorney General Larry Thompson (filling in for the traveling Attorney General John Ashcroft), Deputy Secretary of State Richard Armitage (filling in for the traveling Secretary of State Colin Powell), and Vice Chairman of the Joint Chiefs of Staff Richard Myers (filling in for the traveling Chairman Henry Shelton). National Security Adviser Condoleezza Rice is with Clarke, but she lets him run the crisis response, deferring to his longer experience on terrorism matters. Clarke is also told by an aide, “We’re on the line with NORAD, on an air threat conference call.” [Clarke, 2004, pp. 2-4; Australian, 3/27/2004] According to the 9/11 Commission, logs indicate that Clarke’s video teleconference only begins at 9:25 a.m. (see 9:25 a.m. September 11, 2001), which is later than Clarke suggests, and CIA and FAA representatives only join it at 9:40 a.m. [9/11 Commission, 7/24/2004, pp. 36 and 462] Other accounts claim that, rather than being involved in Clarke’s teleconference at this time, Donald Rumsfeld is still in his office waiting for his intelligence briefing (see (Shortly After 9:03 a.m.) September 11, 2001), and Richard Myers is in a meeting on Capitol Hill (see (After 9:03 a.m.) September 11, 2001). [Armed Forces Radio And Television Service, 10/17/2001; Clarke, 2006, pp. 218-219] The 9/11 Commission claims that, “While important,” Clarke’s conference has “no immediate effect on the emergency defense efforts.” [9/11 Commission, 6/17/2004 ] Yet, as the Washington Post puts it, “everyone seems to agree” Clarke is the chief crisis manager on 9/11. [Washington Post, 3/28/2004] Even Clarke’s later opponent, National Security Adviser Rice, calls him 9/11’s “crisis management guy.” [United Press International, 4/9/2004] The conference is where the government’s emergency defense efforts are concentrated.
Shortly After 9:15 a.m. September 11, 2001: White House Lawyer Is Told What the Justice Department Knows about the Attacks
Timothy Flanigan, the deputy White House counsel, talks on the phone with Deputy Attorney General Larry Thompson and is told what the Justice Department currently knows about the crashes at the World Trade Center, but he is surprised to hear that the FBI is treating them as crimes, rather than acts of war. Deputy National Security Adviser Stephen Hadley has just come into the White House Situation Room (see (9:15 a.m.) September 11, 2001). Wanting to learn more about the crashes in New York, he instructs Flanigan to contact the Justice Department and find out what it knows. “We need everything they’ve got,” he says. Flanigan picks up a phone and calls the Justice Department’s command center. His call is answered by a retired FBI agent who helps run the center. Flanigan introduces himself and says, “I need to speak to the deputy attorney general right away.” (Attorney General John Ashcroft is currently away from Washington, DC (see Shortly After 9:03 a.m. September 11, 2001), and so Thompson, his deputy, is filling in for him.) Flanigan’s call is forwarded to the Strategic Information and Operations Center (SIOC) at FBI headquarters. [C-SPAN, 2/28/2009; Eichenwald, 2012, pp. 23-25] Thompson was in the Justice Department’s command center earlier on, but left there in response to the attacks on the WTC. [Washingtonian, 6/8/2011] He has just entered the SIOC and is told that someone in the Situation Room wants to talk to him. He picks up a phone and hears Flanigan’s voice. “Larry, it’s Tim,” Flanigan says, adding: “I need information. People are starving for it here. Tell me whatever you have.” Thompson tells Flanigan to hold on while he finds out. He turns to FBI Director Robert Mueller, who has been monitoring the information about the attacks that is being gathered by FBI agents in New York, and says, “The White House wants an update on what we’ve got.” Mueller tells him everything is in motion and criminal investigators are already at the attack site. Thompson then gets back on the phone with Flanigan and says, “The FBI is on the scene and they’re treating it as a crime scene.” As he glances at the coverage from New York on television, however, Flanigan is surprised that the FBI is treating the crashes as crimes, rather than acts of war. “We have no information about possible perpetrators and no info about casualties at this point,” Thompson adds. Flanigan thanks him for the information and ends the call. He then turns to Hadley. He is about to tell the deputy national security adviser that the FBI is treating the WTC as a crime scene but then stops himself. “That was my moment of realization that this was not a crime scene,” he will later recall. He therefore simply tells Hadley, “The FBI’s there and we’ll be getting reports from the scene.” [C-SPAN, 2/28/2009; Eichenwald, 2012, pp. 24-25]
9:16 a.m.-9:29 a.m. September 11, 2001: President Bush Works on Speech with Staff; Makes No Decisions
After leaving the Booker Elementary School classroom, President Bush returns to an adjacent holding room where he is briefed by his staff, and gets his first look at the footage of the burning World Trade Center on a television that has been set up there. He instructs his press secretary, Ari Fleischer, to take notes to create an accurate accounting of events. According to some accounts, he speaks on the phone with Vice President Dick Cheney who is at the White House, and they both agree that terrorists are probably behind the attacks. [Sammon, 2002, pp. 92-93; Daily Mail, 9/8/2002; 9/11 Commission, 7/24/2004, pp. 39] But White House adviser Karl Rove, who is also in the holding room, will later tell NBC News that Bush is unable to reach Cheney because the vice president is being moved from his office to the White House bunker at this time. [MSNBC, 9/11/2002] The president speaks with New York Governor George Pataki and FBI Director Robert Mueller. Bush learns from Mueller that the planes that hit the WTC were commercial American aircraft, and at least one of them had apparently been hijacked after leaving Boston. According to some accounts, Bush also speaks with National Security Adviser Condoleezza Rice around this time. However, Rice herself will later suggest otherwise (see (9:45 a.m.) September 11, 2001). [Sammon, 2002, pp. 93-94; Daily Mail, 9/8/2002; St. Petersburg Times, 9/8/2002; 9/11 Commission, 7/24/2004, pp. 39] Fleischer and White House communications director Dan Bartlett quickly draft a statement for the president to deliver in the school’s library, which Bush rewords, scribbling three sheets of notes. Bush will deliver this at 9:30 a.m. (see 9:30 a.m. September 11, 2001). While he works on the statement, Bush briefly glances at the unfolding horror on the television. Turning to his aides in the room, he declares, “We’re at war.” [Sammon, 2002, pp. 94; Albuquerque Tribune, 9/10/2002] According to the 9/11 Commission, the focus at the present time is on the president’s statement to the nation, and the only decision made by Bush’s traveling party is to return to Washington. [9/11 Commission, 7/24/2004, pp. 39] Bush will later claim that he makes no major decisions in response to the crisis until after Air Force One takes off at around 9:55 a.m. (see (Shortly After 9:56 a.m.) September 11, 2001). [Washington Post, 1/27/2002]
2:00 p.m.-8:30 p.m. September 11, 2001: Attorney General Ashcroft Spends Most of Day at FBI Crisis Management Center
Attorney General John Ashcroft spends most of the rest of the day at the FBI’s Strategic Information and Operations Center (SIOC), after arriving there in the early afternoon (see (Between 1:00 p.m. and 2:00 p.m.) September 11, 2001). [9/11 Commission, 12/17/2003 ; Ashcroft, 2006, pp. 129] The SIOC, which is located on the fifth floor of the FBI’s headquarters in Washington, DC, functions as a 24-hour watch post and crisis management center. The huge, windowless center can seat 380 people, and is equipped with sophisticated computers and communications equipment. [CNN, 11/20/1998; Federal Bureau of Investigation, 1/18/2004]
FBI Director Briefs Ashcroft – Ashcroft will later recall that when he arrives at the SIOC, the place is “teeming with people, abuzz with activity, voices and papers everywhere, with dozens of people coming in and out with bits and pieces of new information moment by moment.” Numerous rows of computer screens are “filled with data, and eight large video display screens were being monitored constantly.” Ashcroft is met by FBI Director Robert Mueller, who briefs him on what is so far known regarding the terrorist attacks.
Priority Is to Clear the Skies – During his initial period at the SIOC, Ashcroft will recall, the “overriding priority” is to make sure all commercial aircraft are on the ground. There are also concerns about some planes that have landed and individuals on them who might have been hijackers, and concerns about securing airports so that flights can get up and running again as soon as possible. [9/11 Commission, 12/17/2003 ; Ashcroft, 2006, pp. 120-121]
SIOC Is ‘the Place to Be to Get Information’ – Most of the leading Justice Department and FBI officials remain at the SIOC throughout the day. Other officials in the center along with Ashcroft and Mueller include Deputy Attorney General Larry Thompson, Assistant Attorney General Michael Chertoff, and Immigration and Naturalization Service Commissioner James Ziglar. [Los Angeles Times, 9/12/2001; US Department of Justice, 9/12/2001] According to Ashcroft, the SIOC is “the place to be to get information, and so everyone wanted to be there.” [9/11 Commission, 12/17/2003 ] Ashcroft will later recall, “I spent the hours, days, and most of the first weeks, months, after the attack on the United States in the [SIOC].” He will add, “That day, in those early hours, the prevention of terrorist attacks became the central goal of the law enforcement and national security mission of the Federal Bureau of Investigation.” [CNN, 5/30/2002]
September 12-30, 2001: FBI Headquarters Is Put in Charge of Investigating the 9/11 Attacks, against Usual FBI Practice
The FBI’s New York field office and FBI headquarters in Washington, DC, argue over which of them should lead the bureau’s investigation of the 9/11 attacks and, against precedent, FBI Director Robert Mueller decides to put the headquarters in charge of it.
New York Office Usually Deals with Al-Qaeda Attacks – In the days after the attacks, a major confrontation arises over which facility should be the office of origin for the case. [Graff, 2011, pp. 333-334; Wired, 6/14/2017] The FBI operates under an “office of origin” system, which means that whichever of its 56 field offices opens an official case on a particular subject or group subsequently manages all related matters. The method prevents work being duplicated, and ensures that institutional expertise learned during previous investigations is retained and built on, rather than having to be relearned by a new office when another incident occurs. Under the system, the FBI’s New York office has become the office of origin for al-Qaeda cases and normally deals with al-Qaeda attacks. The office retains most of the bureau’s “institutional knowledge” on Osama bin Laden and al-Qaeda. It led the FBI’s investigations of the bombings of the US embassies in Kenya and Tanzania in August 1998 (see 10:35-10:39 a.m., August 7, 1998), and the attack on the USS Cole in Yemen in October 2000 (see October 12, 2000). [9/11 Commission, 7/24/2004, pp. 74; Soufan, 2011, pp. 82] Mueller, though, wants to run the investigation of the 9/11 attacks from FBI headquarters.
New York Official Objects to Running the Investigation from Washington – He goes to the FBI’s temporary New York field office (see After 10:28 a.m. September 11, 2001) and talks with senior officials there, including Barry Mawn, director of the New York office, Kenneth Maxwell, an assistant special agent in charge at the New York office, and Pasquale D’Amuro, assistant special agent in charge of counterterrorism at the New York office. He explains why he wants FBI headquarters to be the office of origin. Mawn objects, saying the New York office has been the office of origin for the entire al-Qaeda case so far. It has the relevant expertise, investigative capabilities, and files to lead the investigation, he points out, and is also near the Ground Zero crime scene. But Mueller refuses to back down. He says he won’t run the investigation from the headquarters over a conference call. “I want to look someone in the eye,” he comments. [Graff, 2011, pp. 333-334] By October, he will have made the decision to run the investigation from Washington. This is the first time an “operational investigation” has been based at FBI headquarters, according to the Washington Post. [Washington Post, 6/14/2004]
Domestic Terrorism Squad Will Be Assigned to the Case – The case will soon be given the codename PENTTBOM, using the FBI’s standard system for naming cases. This stands for “Pentagon/Twin Towers Bombing.” It is unclear why “BOM” is included in the name, since no bombs were used in the 9/11 attacks. Some agents will later guess that, in the initial confusion, the person who opened the case file incorrectly thought a bomb had been involved. [Graff, 2011, pp. 319-320] D’Amuro will be transferred to Washington and become the leader of the entire case. Instead of being run by one of the FBI’s experienced al-Qaeda squads, I-49 and I-45, a New York domestic terrorism squad called I-44 will be moved to Washington to handle the case. Mary Galligan, who previously spent time as the on-scene commander in the investigation of the attack on the USS Cole, will lead this squad. Some members of the New York Joint Terrorism Task Force will also move to Washington to work on the case.
Former Director Will Disagree with the Decision to Run the Case from Headquarters – Investigators will be based in a large room in the basement of the J. Edgar Hoover Building, where FBI headquarters is located. Two thousand agents will work on the case full-time, following thousands of leads as they pursue information about the attacks. Agents will conduct over 180,000 interviews and review millions of pages of documents. They will log over 155,000 items of evidence and put together a massive timeline, detailing the activities of the alleged 9/11 hijackers in the United States. The investigation will become the largest the FBI has ever conducted. [Washington Post, 6/14/2004; Graff, 2011, pp. 334] However, Louis Freeh, Mueller’s predecessor as FBI director, will criticize Mueller’s decision to run it from FBI headquarters. “I don’t think you can run counterterrorism cases out of headquarters,” he will say. “I think you have to coordinate them out of headquarters,” he will explain, “but you can’t prepare a criminal case for a field presentation in a US district court in headquarters.” [9/11 Commission, 4/13/2004]
September 12, 2001: Attorney General Ashcroft Not Highly Concerned about Following Procedures So Captured Terrorists Can Be Put on Trial
During a National Security Council meeting, FBI Director Robert Mueller begins to describe the investigation under way to identify the 9/11 hijackers. According to journalist Bob Woodward, “He said it was essential not to taint any evidence so that if accomplices were arrested, they could be convicted.” But Attorney General John Ashcroft interrupts. Woodward will paraphrase Ashcroft saying, “The chief mission of US law enforcement… is to stop another attack and apprehend any accomplices or terrorists before they hit us again. If we can’t bring them to trial, so be it.” Woodward will comment, “Now, Ashcroft was saying, the focus of the FBI and the Justice Department should change from prosecution to prevention, a radical shift in priorities.” President Bush is at the meeting and apparently does not challenge Ashcroft’s suggestion. [Woodward, 2002, pp. 42-43]
September 14, 2001: FBI Director Mueller Caught in Whopper
FBI Director Mueller describes reports that several of the hijackers had received flight training in the US as “news, quite obviously,” adding, “If we had understood that to be the case, we would have—perhaps one could have averted this.” It will later be discovered that contrary to Mueller’s claims, the FBI had interviewed various flight school staffs about Middle Eastern militants on numerous occasions, from 1996 until a few weeks before 9/11. [Boston Globe, 9/18/2001; Washington Post, 9/23/2001] Three days later, he says, “There were no warning signs that I’m aware of that would indicate this type of operation in the country.” [US Department of Justice, 9/17/2001] Slate magazine will contrast this with numerous other contradictory statements and articles, and will award Mueller the “Whopper of the Week.” [Slate, 5/17/2002]
