The FBI’s Minneapolis field office drafts an application for a FISA warrant to search Zacarias Moussaoui’s belongings and sends it to the Radical Fundamentalist Unit (RFU) at FBI headquarters. From there, the application is sent to four attorneys at the FBI’s national security law unit (NSLU), as it needs to be legally cleared by them before being submitted to the FISA court. All four attorneys are doubtful that the application contains enough evidence to secure a warrant. Although they are aware that Moussaoui is connected to Chechen rebels, they do not believe the FISA court will consider the Chechen rebels to be a foreign power. Moreover, they do not think the connection between the Chechens and Osama bin Laden is strong enough to make Moussaoui an agent of al-Qaeda. However, the attorneys are not given the relevant documentation. For example, they are not informed that the FBI was warned in April that the Chechen rebel leader and bin Laden were planning an attack against the US (see Before April 13, 2001). Nor are they provided with a copy of the Phoenix memo, in which Arizona FBI agent Ken Williams correctly theorized that bin Laden was sending agents to the US to train in flight schools (see July 10, 2001). Attorney Sherry Sabol will later say that she asked RFU agents Mike Maltbie and Rita Flack whether there was any evidence of people being sent to the US for flight training. Flack, who read the Phoenix memo five days before (see August 22, 2001), said no. Maltbie will later say he does not recall this, and Flack will deny it. [US Department of Justice, 11/2004, pp. 139-160 
; US Department of Justice, 3/1/2006 ; US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006 ] The Justice Department’s Office of Inspector General will later criticize Flack for failing to inform the attorneys of the memo. [US Department of Justice, 11/2004, pp. 208 ] Sabol, fellow NSLU attorney Tom Ainora, and another attorney whose name is unknown will say that they would have taken actions to support the application if they had known about the Phoenix memo. However, they do not believe that material from the Phoenix memo would have been enough to secure the FISA warrant. [US Department of Justice, 11/2004, pp. 146-8, 158-160, 208 ]
September 11, 2001: FBI Agents Obtain Warrant for Moussaoui Too Late
Within an hour of the 9/11 attacks, the Minnesota FBI uses a memo written to FBI headquarters shortly after Zacarias Moussaoui’s arrest to ask permission from a judge for the search warrant they have been desperately seeking. After the World Trade Center is hit for the first time at 8:46 a.m., Mike Maltbie of the Radical Fundamentalist Unit (RFU) at FBI headquarters calls the Minneapolis field office and talks to FBI agent Coleen Rowley. When Rowley says it is essential they get a warrant to search Moussaoui’s belongings, Maltbie instructs her to take no action, because it could have an impact on matters of which she is not aware. Rowley replies that it would have to be the “hugest coincidence” if Moussaoui were not related to the attack. She will recall that Maltbie replies that coincidence is the right word. Maltbie will later say he does not recall using the word “coincidence” in the conversation. Maltbie then consults Tom Ainora, an attorney at the FBI’s national security law unit, who says Minneapolis should seek the warrant. While Rowley is waiting for Maltbie to call back, one of her colleagues, Chris Briese, talks to RFU chief Dave Frasca. According to Briese, Frasca initially says there is not enough evidence for a criminal warrant, but when they find out the Pentagon has been hit Frasca consents. Frasca will say that he consents immediately. [Time, 5/21/2002; US Department of Justice, 11/2004, pp. 178-9 ] Briese later tells Samit that Frasca also initially claims it is just “a coincidence.” [Minneapolis Star Tribune, 6/4/2006] A federal judge approves a criminal search warrant this afternoon. [New Yorker, 9/30/2002; US District Court for the Eastern District of Virginia, Alexandria Division, 3/9/2006] The Radical Fundamentalist Unit at FBI headquarters had previously blocked requests for criminal and intelligence search warrants (see August 21, 2001 and August 28, 2001). Rowley will note that this very memo was previously deemed insufficient by FBI headquarters to get a search warrant, and the fact that they are immediately granted one when finally allowed to ask shows “the missing piece of probable cause was only the [FBI headquarters’] failure to appreciate that such an event could occur.” [Time, 5/21/2002] After the warrant is granted, Moussaoui’s belongings are then rushed to an evidence response team, which discovers documents linking Moussaoui to 11 of the hijackers (see August 16, 2001). Rowley later suggests that if they had received the search warrant sooner, “There is at least some chance that… may have limited the September 11th attacks and resulting loss of life.” [Time, 5/27/2002]
