Late 1997-Early 1998: Hijacker Atta Disappears from Germany for Months
Hijacker pilot Mohamed Atta leaves Hamburg for some time. When he returns in the spring of 1998 he tells his roommate that he has been on another pilgrimage (hajj) to Mecca, although author Terry McDermott wil later note, “He had been on hajj just 18 months earlier, and it would be unlikely for a student—even one so devout—to go twice so quickly or stay so long.” This is his longest absence since arriving in Hamburg, and there is no record of him spending any substantial portion of it at home in Cairo. According to McDermott, he leaves Hamburg “as he usually did over the winter holiday,” but according to the 9/11 Commission, the gap is in February-March 1998, “a period for which there is no evidence of his presence in Germany.” His friends hold a party for him on his return, which is unusual for a student that has just returned from home. After returning to Germany, he applies for a new passport, something he also does after returning from Afghanistan in early 2000 (see Late 1999). [9/11 Commission, 7/24/2004, pp. 167; McDermott, 2005, pp. 57] There are other unexplained absences from Hamburg by members of the same cell around this time (see Summer-Winter 1998). Although the 9/11 Commission, based on information obtained from detainees during interrogation, will say that Atta and his associates did not travel to Afghanistan and join al-Qaeda until late 1999, some commentators will disagree and say that this happened earlier; for example, McDermott will say of the cell members’ various disappearances in 1997-8, “Practically, there is only one place they likely would have gone—Afghanistan.” [9/11 Commission, 7/24/2004, pp. 166; McDermott, 2005, pp. 57] Jane Corbin will say that “[t]he time that Mohamed Atta spent in Afghanistan in 1998 was a period of ambitious reach for Osama bin Laden.” Jason Burke will say that “[i]n early 1998, [Atta] is thought to have traveled to Afghanistan, probably to Khaldan camp.” [Corbin, 2003, pp. 142; Burke, 2004, pp. 243]

1998: Atta Possibly Trains at Base Conducting Pilotless Aircraft Exercises
A military report released this year describes the “Joint Vision 2010” program, a series of “analyses, war games, studies, experiments, and exercises” which are “investigating new operational concepts, doctrines, and organizational approaches that will enable US forces to maintain full spectrum dominance of the battlespace well into the 21st century.” “The Air Force has begun a series of war games entitled Global Engagement at the Air War College, Maxwell Air Force Base, Alabama.” The same report mentions that the military is working on a “variety of new imaging and signals intelligence sensors, currently in advanced stages of development, deployed aboard the Global Hawk, DarkStar, and Predator unmanned aerial vehicles (UAVs)…” [US Department of Defense, 1998] Global Hawk is a technology that enables pilotless flight and has been functioning since at least early 1997. [US Department of Defense, 2/20/1997] While it may be mere coincidence, “Air Force spokesman Colonel Ken McClellan said a man named Mohamed Atta—which the FBI has identified as one of the five hijackers of American Airlines Flight 11—had once attended the International Officer’s School at Maxwell/Gunter Air Force Base in Montgomery, Ala.” But he adds that “there [was] discrepancies in the biographical data” (mainly the birth date) and that “it may just be a case of mistaken identity” (see also 1996-August 2000 and September 15-17, 2001) [Gannett News Service, 9/17/2001; Gannett News Service, 9/20/2001]

May 15, 1998: Oklahoma FBI Memo Warns of Potential Terrorist-Related Flight Training; No Investigation Ensues
An FBI pilot sends his supervisor in the Oklahoma City FBI office a memo warning that he has observed “large numbers of Middle Eastern males receiving flight training at Oklahoma airports in recent months.” The memo, titled “Weapons of Mass Destruction,” further states this “may be related to planned terrorist activity” and “light planes would be an ideal means of spreading chemicals or biological agents.” The memo does not call for an investigation, and none occurs. [NewsOK (Oklahoma City), 5/29/2002; US Congress, 7/24/2003] The memo is “sent to the bureau’s Weapons of Mass Destruction unit and forgotten.” [New York Daily News, 9/25/2002] In 1999, it will be learned that an al-Qaeda agent has studied flight training in Norman, Oklahoma (see May 18, 1999). Hijackers Mohamed Atta and Marwan Alshehhi will briefly visit the same school in 2000; Zacarias Moussaoui will train at the school in 2001 (see February 23-June 2001).

July 7, 1998: Stolen Passport Shows Ties Between Hijackers and Spanish Terrorist Cells
Thieves snatch a passport from a car driven by a US tourist in Barcelona, Spain, which later finds its way into the hands of would-be hijacker Ramzi Bin al-Shibh. Bin al-Shibh allegedly uses the name on the passport in the summer of 2001 as he wires money to pay flight school tuition for Zacarias Moussaoui in Oklahoma. Investigators believe the movement of this passport shows connections between the 9/11 plotters in Germany and a support network in Spain, made up mostly by ethnic Syrians. “Investigators believe that the Syrians served as deep-cover mentors, recruiters, financiers and logistics providers for the hijackers—elite backup for an elite attack team.” [Los Angeles Times, 1/14/2003] Mohamed Atta twice travels to Spain in 2001, perhaps to make contact with members of this Spanish support team.

August 1998: Germany Investigates Hamburg Al-Qaeda Cell Member
A German inquiry into Mounir El Motassadeq, an alleged member of the Hamburg al-Qaeda cell with Mohamed Atta, begins by this time. Although Germany will not reveal details, documents show that by August 1998, Motassadeq is under surveillance. “The trail soon [leads] to most of the main [Hamburg] participants” in 9/11. Surveillance records Motassadeq and Mohammed Haydar Zammar, who had already been identified by police as a suspected extremist, as they meet at the Hamburg home of Said Bahaji, who is also under surveillance that same year. (Bahaji will soon move into an apartment with Atta and other al-Qaeda members.) German police monitor several other meetings between Motassadeq and Zammar in the following months. [New York Times, 1/18/2003] Motassadeq is later convicted in August 2002 in Germany for participation in the 9/11 attacks, but his conviction is later overturned (see March 3, 2004).

November 1, 1998-February 2001: Atta and Other Islamic Militants Are Monitored by US and Germany in Hamburg Apartment
Mohamed Atta and al-Qaeda operatives Said Bahaji and Ramzi Bin al-Shibh move into a four bedroom apartment at 54 Marienstrasse, in Hamburg, Germany, and stay there until February 2001 (Atta is already living primarily in the US well before this time). Investigators believe this move marks the formation of their Hamburg al-Qaeda cell [Los Angeles Times, 1/27/2002; New York Times, 9/10/2002] Up to six men at a time live at the apartment, including other al-Qaeda agents such as hijacker Marwan Alshehhi and cell member Zakariya Essabar. [New York Times, 9/15/2001] During the 28 months Atta’s name is on the apartment lease, 29 Middle Eastern or North African men register the apartment as their home address. From the very beginning, the apartment was officially under surveillance by German intelligence, because of investigations into businessman Mamoun Darkazanli that connect to Said Bahaji. [Washington Post, 10/23/2001] The Germans also suspect connections between Bahaji and al-Qaeda operative Mohammed Haydar Zammar. [Los Angeles Times, 9/1/2002] German intelligence monitors the apartment off and on for months, and wiretaps Mounir El Motassadeq, an associate of the apartment-mates who is later put on trial in August 2002 for assisting the 9/11 plot, but apparently do not find any indication of suspicious activity. [Chicago Tribune, 9/5/2002] Bahaji is directly monitored at least for part of 1998, but German officials have not disclosed when the probe began or ended. That investigation is dropped for lack of evidence. [Associated Press, 6/22/2002; Los Angeles Times, 9/1/2002] It is now clear that investigators would have found evidence if they looked more thoroughly. For instance, Zammar, a talkative man who has trouble keeping secrets, is a frequent visitor to the many late night meetings there. [Miller, Stone, and Mitchell, 2002, pp. 259-60; Los Angeles Times, 9/1/2002; Chicago Tribune, 9/5/2002] Another visitor later recalls Atta and others discussing attacking the US. [Knight Ridder, 9/9/2002] 9/11 mastermind Khalid Shaikh Mohammed is in Hamburg several times in 1999, and comes to the apartment. However, although there was a $2 million reward for Mohammed since 1998, the US apparently fails to tell Germany what it knows about him (see 1999). [Newsweek, 9/4/2002; New York Times, 11/4/2002] Hijacker Waleed Alshehri also apparently stays at the apartment “at times.” [Washington Post, 9/14/2001; Washington Post, 9/16/2001] The CIA also starts monitoring Atta while he is living at this apartment, and does not tell Germany of the surveillance. Remarkably, the German government will claim it knew little about the Hamburg al-Qaeda cell before 9/11, and nothing directed them towards the Marienstrasse apartment. [Daily Telegraph, 11/24/2001]

End Part III