The 19 hijackers apply and receive a total of 23 visas at five different posts from November 1997 through June 2001. Hani Hanjour, Khalid Almihdhar, Saeed Alghamdi and Ahmed Alnami, Saudi citizens, apply twice at Jeddah. Only Hanjour applies for a student visa, others for tourist/business visa. [United States General Accounting Office, 10/21/2002 
; 9/11 Commission, 8/21/2004, pp. 7-45 ] 
The fifteen Saudi hijackers apply for their visas in their home country. Four at the embassy in Riyadh: Hamza Alghamdi (10/17/2000), Mohand Alshehri (10/23/2000), Majed Moqed (11/20/2000) and Satam Al Suqami (11/21/2000). Eleven at the US consulate in Jeddah: Hani Hanjour (11/2/1997 and 9/25/2000), Khalid Almihdhar (4/7/1999 and 6/13/2001), Saeed Alghamdi (9/4/2000 and 6/12/2001), and Ahmed Alnami (10/28/2000 and 4/28/2001), Nawaf Alhazmi (4/3/1999), Ahmed Alghamdi (9/3/2000), Wail Alshehri (10/24/2000), Waleed M. Alshehri (10/24/2000), Abdulaziz Alomari (6/18/2001), Salem Alhazmi (6/20/2001), and Ahmed Alhaznawi (11/12/2000). Fayez Ahmed Banihammad and Marwan Alshehhi apply in their home country, the United Arab Emirates, respectively at the US embassy in Abu Dhabi on 6/18/2001 and at consulate in Dubai on 1/18/2000. Mohamed Atta (Egyptian) and Ziad Jarrah (Lebanese) apply, as third-country national applicants, at the US embassy in Berlin, respectively, on May 18 and 25, 2000.
Late 1997-Early 1998: 9/11 Hijacker Atta Disappears from Germany for Months; He Possibly Trains in Afghanistan with Bin Al-Shibh
Future 9/11 hijacker Mohamed Atta leaves Hamburg for some time in late 1997 and early 1998, and he may go to militant training camps in Afghanistan, possibly with hijacker associate Ramzi bin al-Shibh. When Atta returns in the spring of 1998 he tells his roommate that he has been on another pilgrimage (hajj) to Mecca, although author Terry McDermott will 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 Atta’s 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.” [McDermott, 2005, pp. 57] 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.” Atta’s friends hold a party for him on his return, which is unusual for a student who has just returned from home. After returning to Germany, Atta applies for a new passport, something he will also do after returning from Afghanistan in early 2000 (see Late 1999). [9/11 Commission, 7/24/2004, pp. 167] 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 do not travel to Afghanistan and join al-Qaeda until late 1999, some commentators will disagree and say that this happens earlier. [McDermott, 2005, pp. 57] 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] 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.” [Corbin, 2003, pp. 142] Jason Burke will say that “[i]n early 1998, [Atta] is thought to have traveled to Afghanistan, probably to Khaldan camp.” [Burke, 2004, pp. 243] In mid-2002, Al Jazeera reporter Yosri Fouda will allegedly interview bin al-Shibh and 9/11 mastermind Khalid Shaikh Mohammed in Pakistan (see April, June, or August 2002). In a book he co-writes in 2003, he will claim that an al-Qaeda operative known only by a nickname Fouda gave him so he could call him something—Abu Bakr—helped set up the interview. At one point, Bakr allegedly told Fouda that he met Atta and bin al-Shibh at a training camp around this time, saying: “They came together. I did not know who they were.… Brother Ramzi was very active and very much into media, and brother Atta was very kind.” Bin al-Shibh disappears in Germany for several months in late 1997, and re-enters Germany on a new visa in December 1997. [Fouda and Fielding, 2003, pp. 124]
1998: German Police Investigate Hamburg Hijacker Associate Linked to Milan Cell
Police raid the apartment of Cabdullah Ciise, an extremist based in Germany who is linked to hijacker Mohamed Atta and some of his associates in the Hamburg al-Qaeda cell. The police find forged Italian documents in the apartment, proving a link between Ciise in Germany and Italian cells that specialize in document forgery, especially one in Milan that is under investigation (see 1998 and October 2, 1998). Ciise lives in Germany from 1991 until October 1999, during which time he becomes friendly with Mohamed Atta as well as cell member Ramzi bin al-Shibh, with whom he often watches videos about the war in Chechyna and talks about religion. Ciise is also linked to other cell members such as Mohamed Daki and his associates Said Bahaji and Mounir El Motassadeq, as well as a Yemeni named Mohammed Rajih whom German authorities will investigate for terrorist ties at some point before 2005. It is unclear what impact the link to the important Milan cell has on surveillance of the cell in Hamburg. Ciise will allegedly be involved in a bombing in Mombasa, Kenya (see November 28, 2002), will help send fighters to Iraq, and will be arrested in Milan in 2003. [Vidino, 2006, pp. 256]
1998: Monitored Al-Qaeda Operative Zammar Probably Recruits 9/11 Hijacker Atta and Others in Hamburg Cell
Al-Qaeda operative Mohammed Haydar Zammar probably recruits future 9/11 hijacker Mohamed and other key members of the Hamburg cell into al-Qaeda this year. According to Time magazine, “US investigators believe [Zammar] may have persuaded Atta’s Islamic study group to offer its services to al-Qaeda around 1998.” Zammar was frequently seen by neighbors with Atta starting in 1997 (see 1997). [Time, 7/1/2002]
Zammar Being Monitored by US and German Intelligence – German intelligence began heavily monitoring Zammar in early 1997 and this continues until at least early 2000 (see March 1997-Early 2000). The CIA also appears to be monitoring Zammar by this time. Author Terry McDermott will later comment: “[T]he CIA told the [9/11 Congressional Inquiry] it had a long-standing interest in Zammar that pre-dated [a wiretap done in March 1999 (see March 1999)]. In other words, the CIA appears to have been investigating the man who recruited the hijackers at the time he was recruiting them.” [McDermott, 2005, pp. 73, 278-279]
1998: 9/11 Hijacker 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).
Summer 1998: Al-Qaeda 9/11 Cell Coalesces in Hamburg
Future 9/11 hijacker Mohamed Atta and a group of his radical Islamist friends move into an apartment in Wilhelmsburg, an island on the Elbe River in the middle of Hamburg, Germany. The area is a run-down industrial zone. It is unclear who all the members of the group living in the apartment are, but Marwan Alshehhi and Ramzi bin al-Shibh live there. For the first time, this group becomes very closely tied together. They live an extremely simple life, with nothing but mattresses for furniture and no electrical devices except for lights. Neighbors will later say the men in the apartment talk long into the night nearly every night, with the blinds on the windows permanently closed. The group moves to a nicer apartment on November 1, 1998 (see November 1, 1998-February 2001). [McDermott, 2005, pp. 58-60]
July 7, 1998: Stolen Passport Links 9/11 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 (see July 29, 2001-August 3, 2001). After 9/11, investigators will 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 travels to Spain twice or three times in 2001 (see January 4-10, 2001, July 8-19, 2001, and September 5, 2001), perhaps to make contact with members of this Spanish support team.
August 29, 1998: Germany Starts Investigating Hamburg Al-Qaeda Cell Member El Motassadeq by This Date
A German inquiry into Mounir El Motassadeq, a member of the Hamburg al-Qaeda cell, begins by this date. Although Germany will not reveal details, documents show that by August 1998, El Motassadeq is under surveillance. “The trail soon [leads] to most of the main [Hamburg] participants” in 9/11. Surveillance records El 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 on August 29, 1998. Files show that investigators are aware of who Bahaji is by this time.(Bahaji will soon move into an apartment with 9/11 hijacker Mohamed Atta and other al-Qaeda members (see November 1, 1998-February 2001.) German police monitor several other meetings between El Motassadeq and Zammar in the following months. [New York Times, 1/18/2003] El Motassadeq will later be sentenced to 15 years in prison for membership in al-Qaeda (see August 19, 2005).
November 1, 1998-February 2001: 9/11 Hijacker Atta and Associates Are Monitored Some by US and Germany in Their Hamburg Apartment
Future 9/11 hijacker Mohamed Atta, al-Qaeda operatives Said Bahaji and Ramzi Bin al-Shibh, and others in the al-Qaeda Hamburg cell move into a four bedroom apartment at 54 Marienstrasse, in Hamburg, Germany, and some of them stay there until February 2001. Investigators will later believe this move marks the formation of the 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, at times, 9/11 hijacker Marwan Alshehhi and cell member Zakariya Essabar. Alshehhi moves out after the first month; it is unclear why. [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.
Surveillance of Bahaji – From the very beginning, the apartment is under surveillance by German intelligence, because of investigations into businessman Mamoun Darkazanli that connect to 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] Bahaji is directly monitored for at least part of 1998, but German officials will not disclose when the probe began or ends. This investigation is dropped for lack of evidence (see (Late 1998)). [Associated Press, 6/22/2002; Los Angeles Times, 9/1/2002] Bahaji moves out in July 1999 and gets married a few months later (see October 9, 1999). [Der Spiegel (Hamburg), 8/29/2011]
Surveillance of El Motassadeq – German intelligence monitors the apartment off and on for months, and wiretaps Mounir El Motassadeq, an associate of the apartment-mates who will later be convicted for assisting the 9/11 plot, but apparently it does not find any indication of suspicious activity (see August 29, 1998). [Chicago Tribune, 9/5/2002]
Surveillance of Zammar – Zammar, a talkative man who has trouble keeping secrets, does not live at the apartment, but he 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] He even lives in the apartment for a time in February 1999 (see February 1999). Zammar is the focus of an investigation that began in 1997 and continues until early 2000 (see March 1997-Early 2000). Interest in monitoring him increases in late 1998 (see October 2, 1998).
Surveillance of Atta – The CIA also allegedly starts monitoring Atta in early 2000 while he is living at the apartment, and does not tell Germany of the surveillance (see January-May 2000). Atta leaves Germany to live in the US in June 2000 (see June 3, 2000).
No Direct German Surveillance of the Apartment? – Yet, even though people like Zammar who frequently phone and visit the apartment are monitored, German officials will later claim that the apartment itself is never bugged. An unnamed senior German security official will later say that some surveillance of associated people gives “the impression that the people living there were fanatical believers. At the BfV [Germany’s domestic intelligence agency], we had to decide whether to ask permission to place a wiretap on the line at 54 Marienstrasse itself. We discussed this every day.” But he will claim that they ultimately decide they will not be able to get legal permission for a wiretap because there is no evidence that the apartment’s occupants are breaking any laws. [Vanity Fair, 11/2004] This claim that the apartment was not directly monitored seems contradicted by reports that Bahaji was the target of a surveillance investigation when he was living in the Marienstrasse apartment in late 1998 (see (Late 1998)).
What Would More Surveillance Have Uncovered? – It will later be clear that investigators could have found evidence if they looked more thoroughly. For instance, one visitor will recall 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 is 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] 9/11 Hijacker Waleed Alshehri also apparently stays at the apartment “at times.” [Washington Post, 9/14/2001; Washington Post, 9/16/2001] Remarkably, shortly after 9/11, the German government will claim it knew little about the Hamburg al-Qaeda cell before 9/11, and nothing directed it towards the Marienstrasse apartment. [Daily Telegraph, 11/24/2001]
