Margaret Gillespie, an FBI agent detailed to the CIA who has just found out that future 9/11 hijacker Khalid Almihdhar is in the US (see August 21-22, 2001), suggests asking failed Millennium bomber Ahmed Ressam whether he recognizes Almihdhar, but the proposal is not acted on. Ressam was arrested on his way to bomb Los Angeles airport (see December 14, 1999), but has been co-operating with the US government against al-Qaeda (see May 30, 2001). Gillespie makes the suggestion in an e-mail to Tom Wilshire, a CIA representative to the FBI. It is unclear what Wilshire does with the suggestion, but Ressam is not interviewed. When shown photos of Almihdhar after 9/11, Ressam will not recognize him. The FBI also fails to ask Ressam about Zacarias Moussaoui before 9/11, but shortly after 9/11 Ressam will identity Moussaoui as a person that attended al-Qaeda’s camps in Afghanistan (see Late August-Early September 2001). [9/11 Commission, 7/24/2004, pp. 275-6, 541]
Before August 22, 2001: FBI Headquarters Agent Learns Al-Qaeda Leader Attended Malaysia Summit with 9/11 Hijackers, Investigation Fails to Discover How
FBI headquarters agent Dina Corsi learns that al-Qaeda leader Khallad bin Attash attended a summit in Malaysia that was also attended by 9/11 hijackers Khalid Almihdhar and Nawaf Alhazmi (see January 5-8, 2000); an e-mail sent by Corsi on this date contains the first reference in FBI documents to bin Attash’s presence at the Malaysia summit. Although it is her job to support the investigation into the attack on the USS Cole (see October 12, 2000), which bin Attash commanded, and she is aware that bin Attash is important to the Cole investigation, even saying that she is focused on his identity and whereabouts, she fails to communicate this information to the agents investigating the bombing, who do not receive it before 9/11 (see August 30, 2001). After 9/11, she will say she cannot recall how she learned this information and an investigation by the Justice Department’s Office of Inspector General will fail to find any documents that cast light on the matter. Although she does not do anything with this information before another FBI agent tells her Khalid Almihdhar is in the US (see August 21-22, 2001), she will later say that the information bin Attash was at the Malaysia summit was important, as it connected Almihdhar and Alhazmi to the Cole bombing. She will also say that CIA officers Tom Wilshire and Clark Shannon, who she discussed al-Qaeda’s Malaysia summit with and who knew that bin Attash was in Malaysia with Alhazmi and Almihdhar (see Late May, 2001, Mid-May 2001 and June 11, 2001), did not give her this information. Although Corsi and others know that bin Attash is an important al-Qaeda leader, he is not watchlisted at this point, although one of his aliases is watchlisted in August (see August 23, 2001). [US Department of Justice, 11/2004, pp. 280, 284, 286, 293, 296, 302 
]
August 22, 2001: Top FBI Al-Qaeda Expert Leaves FBI in Frustration; Misses Important Warnings on Moussaoui and Two 9/11 Hijackers
Counterterrorism expert John O’Neill retires from the FBI. He says it is partly because of the recent power play against him, but also because of repeated obstruction of his investigations into al-Qaeda. [New Yorker, 1/14/2002] In his last act, he signs papers ordering FBI investigators back to Yemen to resume the USS Cole investigation, now that Barbara Bodine is leaving as ambassador (they arrive a couple days before 9/11). He never hears the CIA warning about hijackers Nawaf Alhazmi and Khalid Almihdhar sent out just one day later. He also apparently is not told about the arrest of Zacarias Moussaoui on August 15, 2001 [PBS, 10/3/2002] ; nor does he attend a June meeting when the CIA reveals some of what it knows about Alhazmi and Almihdhar. [PBS Frontline, 10/3/2002] ABC News reporter Chris Isham will later say, “John had heard the alarm bells, too, and we used to talk about it. And he knew that there was a lot of noise out there and that there were a lot of warnings, a lot of red flags, and that it was at a similar level that they were hearing before the millennium, which was an indication that there was something going on. And yet he felt that he was frozen out, that he was not in a capacity to really do anything about it anymore because of his relationship with the FBI. So it was a source of real anguish for him.” [PBS, 10/3/2002]
August 22, 2001: CIA Officer Who Already Knows of Almihdhar and Alhazmi’s US Travel Is Informed of it by FBI, Agrees Investigation Should Start
After FBI agents Margaret Gillespie and Dina Corsi learn that 9/11 hijackers Khalid Almihdhar and Nawaf Alhazmi may be in the US (see August 21-22, 2001), they call a meeting with Tom Wilshire, a CIA officer interested in the investigation who is on loan to the FBI. Although all three will later be unable to recall the specifics of the conversation, they agree that it is important to initiate an investigation to locate Almihdhar. However, Wilshire has been aware that Almihdhar has a US visa since January 2000, when he frustrated the passage of such information to the FBI (see 9:30 a.m. – 4:00 p.m. January 5, 2000). He is also already aware that Alhazmi entered the US in January 2000 (see May 15, 2001) but again does not share this with the FBI. [US Department of Justice, 11/2004, pp. 301-2 ]
August 22, 2001: FBI Team Returns to Yemen to InvestigateColeBombing
An FBI team returns to Yemen to re-commence its investigation of the bombing of the USS Cole (see October 12, 2000). The team, headed by FBI agent Ali Soufan and sent by retiring FBI manager John O’Neill on his last day with the FBI (see August 22, 2001), had been pulled out of Yemen in June, due to possible threats against it (see June 17, 2001). On the same day as Soufan leaves, the CIA finally tells the FBI some of what it knows about 9/11 hijackers Khalid Almihdhar and Nawaf Alhazmi, and their attendance at an al-Qaeda’s Malaysia summit (see August 21-22, 2001 and August 23, 2001). Soufan had requested information about the Malaysia summit from the CIA three times (see Late November 2000, April 2001 and July 2001), but the CIA had repeatedly failed to respond to his requests. While in Yemen, Soufan appears not to be aware of the new information provided to the FBI, and learns about the Malaysia summit shortly after the 9/11 attacks (see January 5-8, 2000 and September 12-Late September, 2001). [New Yorker, 7/10/2006 ]
August 23, 2001: 9/11 Hijackers Alhazmi and Almihdhar Are Finally Added to Terrorist Watch List
Thanks to the request of Margaret Gillespie, an FBI analyst assigned to the CIA’s Counter Terrorism Center, the CIA sends a cable to the State Department, INS, Customs Service, and FBI requesting that “bin Laden-related individuals” Nawaf Alhazmi, Khalid Almihdhar, Ahmad Hikmat Shakir, and Salah Saeed Mohammed bin Yousaf (an alias for Khallad bin Attash) be put on the terrorism watch list. All four individuals had attended the January 2000 al-Qaeda summit in Malaysia (see January 5-8, 2000). The cable mostly focuses on Almihdhar, briefly outlining his attendance at the Malaysia summit and his subsequent travel to the US in January 2000 and July 2001. Since March 2000, if not earlier, the CIA has had good reason to believe Alhazmi and Almihdhar were al-Qaeda operatives living in the US, but apparently did nothing and told no other agency about it until now. The hijackers are not located in time, and both die in the 9/11 attacks. FBI agents later state that if they been told about Alhazmi and Almihdhar sooner, “There’s no question we could have tied all 19 hijackers together” given the frequent contact between these two and the other hijackers. [Newsweek, 6/2/2002; 9/11 Commission, 7/24/2004, pp. 538; US Department of Justice, 11/2004, pp. 32-36, 302] However, in what the Washington Post calls a “critical omission,” the FAA, the Treasury Department’s Financial Crimes Enforcement Network, and the FBI’s Financial Review Group are not notified. The two latter organizations have the power to tap into private credit card and bank data, and claim they could have readily found Alhazmi and Almihdhar, given the frequency the two used credit cards. [Washington Post, 7/25/2003] Furthermore, counterterrorism chief Richard Clarke and his Counterterrorism Security Group are not told about these two operatives before 9/11 either. [Newsweek, 3/24/2004] The CIA later claims the request was labeled “immediate,” the second most urgent category (the highest is reserved for things like declarations of war). [Los Angeles Times, 10/28/2001] The FBI denies that it was marked “immediate” and other agencies treated the request as a routine matter. [Los Angeles Times, 10/18/2001; US Congress, 9/20/2002] The State Department places all four men on the watch list the next day. [US Congress, 7/24/2003 ] However, this watch list, named TIPOFF, checks their names only if they use international flights. There is another watch list barring suspected terrorists from flying domestically. On 9/11, it contains only 12 names, including Khalid Shaikh Mohammed and other al-Qaeda figures, and some names are added as late as August 28, 2001. But none of these four men are added to this domestic list before 9/11.(see April 24, 2000). [9/11 Commission, 1/26/2004]
August 23, 2001: FBI Manager Informed of Hunt for 9/11 Hijacker Almihdhar, Realizes Seriousness of Situation
Dina Corsi, an FBI agent in the bureau’s bin Laden unit, informs her boss, bin Laden unit supervisor Rodney Middleton, that 9/11 hijacker Khalid Almihdhar is in the US. [US Department of Justice, 11/2004, pp. 303 ] Middleton will later recall his reaction to the news as an “‘Oh sh_t’ moment.” [US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006, pp. 52 ] He reviews the information Corsi presents to him and agrees with her that an intelligence investigation should be opened in New York to find Almihdhar. [US Department of Justice, 11/2004, pp. 303 ]
August 23, 2001: Mossad Reportedly Gives CIA List of Terrorists Living in US; at Least Four 9/11 Hijackers Named
According to German newspapers, the Mossad gives the CIA a list of 19 terrorists living in the US and say that they appear to be planning to carry out an attack in the near future. It is unknown if these are the 19 9/11 hijackers or if the number is a coincidence. However, four names on the list are known, and these four will be 9/11 hijackers: Nawaf Alhazmi, Khalid Almihdhar, Marwan Alshehhi, and Mohamed Atta. [Die Zeit (Hamburg), 10/1/2002; Der Spiegel (Hamburg), 10/1/2002; BBC, 10/2/2002; Ha’aretz, 10/3/2002] The Mossad appears to have learned about this through its “art student spy ring.” Yet apparently, this warning and list are not treated as particularly urgent by the CIA and the information is not passed on to the FBI. It is unclear whether this warning influenced the decision to add Alhazmi and Almihdhar to a terrorism watch list on this same day, and if so, why only those two. [Der Spiegel (Hamburg), 10/1/2002] Israel has denied that there were any Mossad agents in the US. [Ha’aretz, 10/3/2002]
August 24, 2001: CIA Officer Detailed to FBI Asked to Help with Moussaoui Warrant
After the CIA sends the FBI information it thinks is sufficient for a warrant to search Zacarias Moussaoui’s belongings (see August 24, 2001), the CIA’s Counterterrorist Center (CTC) sends the same information to a CIA representative to the FBI and asks him to help arrange a search warrant. The representative is not named, but it may be Tom Wilshire (see May 2001), a CIA officer assigned to the FBI who requests information about Moussaoui on this day (see August 24, 2001). The CTC officer writes: “No one in the FBI seems to have latched on to this. Perhaps you can educate them on Moussaoui. This may be all they need to open a FISA on Moussaoui.” [Tenet, 2007, pp. 202]
After August 23, 2001: US Intelligence Again Fails to Connect Al-Qaeda Leader to Alias
When the US intelligence community watchlists the alias Salah Saeed Mohammed bin Yousaf, which is used by al-Qaeda leader Khallad bin Attash (see August 23, 2001), it fails to realize that “bin Yousaf” is really bin Attash, who is known to be one of the masterminds of the USS Cole bombing (see Late October-Late November 2000 and November 22-December 16, 2000). The CIA knows that both bin Attash and “Salah Saeed Mohammed bin Yousaf” were in Malaysia with 9/11 hijackers Khalid Almihdhar and Nawaf Alhazmi in January 2000 (see January 5-8, 2000, January 8, 2000, and January 4, 2001). Furthermore, the CIA has a photo of bin Attash provided by the Yemeni government, and surveillance photos and video of bin Attash with Alhazmi and Almihdhar at an al-Qaeda summit in Malaysia (see January 5-8, 2000 and Shortly After and January 5, 2000). And when bin Attash applied for a US visa, he used the “bin Yousaf” alias (see April 3, 1999), so presumably a comparison of his photo from that application with other photos would reveal that “bin Yousaf” and bin Attash are one and the same person. However, apparently no check is made for any US visa of “bin Yousaf,” even after he is watchlisted to prevent him from coming into the US, which would require a visa. Had a check been made, it would have been discovered that he applied for a visa at the same time as both Almihdhar and Alhazmi (see April 3-7, 1999), the very people who have been watchlisted together with him. Presumably, discovering that Alhazmi and Almihdhar had applied for US visas with one of the Cole masterminds would have greatly increased the urgency of finding them. [9/11 Commission, 7/24/2004, pp. 538; US Department of Justice, 11/2004, pp. 248, 300-3 ] The US missed other opportunities to learn more about this alias (see After January 8, 2000 and After December 16, 2000).
