The muscle hijackers arrive in Dubai on their way to the US (see April 23-June 29, 2001): 
April 11: It is not known when Ahmed Alghamdi first arrives in Dubai, but he leaves on April 8, traveling to an unknown destination, and returns on April 11; April 12: Satam al Suqami arrives in the United Arab Emirates from Malaysia (see April 1-May 27, 2001); May 7, 2001: Ahmed Alhaznawi arrives in Abu Dhabi from Karachi by plane; May 13: Ahmed Alnami arrives in the United Arab Emirates by plane from Saudi Arabia; May 26: Hamza Alghamdi enters the United Arab Emirates; May 27: Abdulaziz Alomari arrives in Dubai from Malaysia (see April 1-May 27, 2001); June 1: It is not known when Wail Alshehri first arrives in Dubai, but he leaves on May 29, traveling to an unknown destination, and returns on June 1 with Ahmed Alhaznawi, who previously arrived on May 7, but must have left in the meantime; June 12: Saeed Alghamdi arrives in the United Arab Emirates from Saudi Arabia; June 28: Salem Alhazmi arrives in the United Arab Emirates from Saudi Arabia. [US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006, pp. 42-50 
]
The hijackers typically remain in Dubai for a few weeks before moving on to the US (see April 23-June 29, 2001). While in Dubai the hijackers purchase traveler’s checks: April 28: Majed Moqed purchases $2,980 in MasterCard travelers’ checks from the Thomas Cook Exchange in the nearby emirate of Sharjah; May 27, 2001: Ahmed Alnami purchases $10,000 of American Express travelers’ checks and Hamza Alghamdi purchases the same amount of Visa travelers’ checks in Dubai; June 6, 2001: Ahmed Alhaznawi purchases $3,000 of American Express travelers’ checks in Dubai; June 7, 2001: Wail Alshehri purchases $14,000 of American Express travelers’ checks in Sharjah; June 24: Fayez Ahmed Banihammad purchases $4,000 of Thomas Cook travelers’ checks in Sharjah. [US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006, pp. 44-48 ]
In addition, Wail Alshehri obtains an international driving permit in Sharjah on June 5. [US District Court for the Eastern District of Virginia, Alexandria Division, 7/31/2006, pp. 47 ] Some of these hijackers are assisted by plot facilitator Mustafa Ahmed al-Hawsawi (see Early-Late June, 2001). It is not clear who helps the others, although Dubai-based Ali Abdul Aziz Ali previously assisted some of the hijackers (see June 29, 2000-September 18, 2000), and Saeed Sheikh, who has Dubai connections, may also assist some of them (see Early August 2001). In addition, Victor Bout, an arms dealer who flies shipments for al-Qaeda and the Taliban through the UAE, is based in Sharjah (see Mid-1996-October 2001).
Before April 13, 2001: FBI Reports Extremists Linked to Chechnya Leader and Bin Laden Are Planning Attack
Dale Watson, head of the FBI’s counterterrorism program, sends a memo to FBI Director Louis Freeh warning that Islamic radicals are planning a “terrorist operation.” The memo states that “Sunni extremists with links to Ibn al Kahhatb, an extremist leader in Chechnya, and to Osama bin Laden [have been involved in] serious operational planning… since late 2000, with an intended culmination in late spring 2001.” Watson says the planning was sparked by the renewal of the Palestinian Intifada in September 2000. “[A]ll the players are heavily intertwined,” the memo notes. Additionally, the memo says that “[m]ultiple sources also suggest that [bin Laden’s] organization is planning a terrorist attack against US interests.” The memo is also sent to other FBI officials, such as International Terrorism Operations Section (ITOS) chief Michael Rolince, who will later be involved in the case of Zacarias Moussaoui (see Late August 2001 and (August 30-September 10, 2001)) [Federal Bureau of Investigation, 4/2001 ] Based on this report, ITOS sends an e-mail (see April 13, 2001) to all field offices, asking agents to help identify information pertaining to the “current operational activities relating to Sunni extremism.” The e-mail does not mention Ibn Khattab. [Associated Press, 3/21/2006] These plans may be for the 9/11 attacks—at least some of the alleged hijackers are linked to bin Laden (see January 5-8, 2000), and Zacarias Moussaoui is linked to Ibn Khattab (see Late 1999-Late 2000). Some of the hijackers fought in Chechnya and therefore might also be linked to Ibn Khattab (see 1996-December 2000). Officials at FBI headquarters will later refuse a search warrant for Zacarias Moussaoui’s belongings saying they believe Ibn Khattab is not closely connected to Osama bin Laden and is not hostile to the US (see August 22, 2001 and August 23-27, 2001).
April 12, 2001: Report on Energy Security Argues US Needs to Review Policy on Iraq
A report commissioned by former US Secretary of State James Baker and the Council on Foreign Relations, titled “Strategic Energy Policy Challenges For The 21st Century,” is completed and submitted to Vice President Dick Cheney. The report was drafted by the James A. Baker III Institute for Public Policy. Edward L. Morse, an energy industry analyst, chaired the project, and Amy Myers Jaffe was the project’s director. The paper urges the US to formulate a comprehensive, integrated strategic energy policy to address the current energy crisis, which it attributes to infrastructural restraints, rapid global economic expansion, and the presence of obstacles to foreign investment in the oil-rich Middle East. The report says the world’s supply of oil is not a factor in the crisis. “The reasons for the energy challenge have nothing to do with the global hydrocarbon resource base…. The world will not run short of hydrocarbons in the foreseeable future,” the paper says. One of the report’s recommendations is to “[r]eview policies toward Iraq” with the ultimate goal of stemming the tide of anti-Americanism in the Middle-East and “eas[ing] Iraqi oil-field investment restrictions.” Iraq, under the leadership of Saddam Hussein, remains a “destabilizing influence… to the flow of oil to international markets from the Middle East.” It also notes, “Saddam Hussein has also demonstrated a willingness to threaten to use the oil weapon and to use his own export program to manipulate oil markets.” Therefore, the report says, the “United States should conduct an immediate policy review toward Iraq, including military, energy, economic, and political/diplomatic assessments” and work with key allies to develop a new integrated strategy toward Iraq. Key elements of the new policy should include narrowing the focus of sanctions and using diplomatic means to enforce existing UN resolutions. [University, 4/2/2001 ; Sunday Herald (Glasgow), 10/5/2002; Sydney Morning Herald, 12/26/2002]
April 12-September 7, 2001: 9/11 Hijackers Collect Multiple Drivers’ License Copies
At least six 9/11 hijackers get more than one Florida driver’s license. They get the second license simply by filling out change of address forms: Waleed Alshehri—first license May 4, duplicate May 5; Marwan Alshehhi—first license, April 12, duplicate in June; Ziad Jarrah—first license May 2, duplicate July 10; Ahmed Alhaznawi—first license July 10, duplicate September 7 (see September 7, 2001); Hamza Alghamdi—first license June 27, two duplicates, the second in August; and “A sixth man” with a Florida duplicate is not named. [South Florida Sun-Sentinel, 9/28/2001] Additionally, some hijackers obtained licenses from multiple states. For instance, Nawaf Alhazmi had licenses from California, New York, and Florida at the same time, apparently all in the same name. [Newsday, 9/21/2001; South Florida Sun-Sentinel, 9/28/2001; South Florida Sun-Sentinel, 9/28/2001; Daily Oklahoman, 1/20/2002]
April 13, 2001: FBI Warned to Search for Information on Muslim Extremist Threat
Shortly after discovering that Osama bin Laden and Chechen rebel leader Ibn Khattab may be planning an attack against the US (see Before April 13, 2001), the FBI sends a message to all its field offices summarizing intelligence reporting to date on the Sunni extremist threat (see February 6, 2001). (Bin Laden is the most wanted Sunni extremist by this time.) The offices are told to task all resources, including human sources and electronic databases, for any information pertaining to “current operational activities relating to Sunni extremism.” No specific domestic threat is mentioned, but the FBI’s mission is to protect domestic security while the CIA is in charge of overseas threats. [9/11 Commission, 7/24/2004, pp. 255; US District Court of Eastern Virginia, 5/4/2006, pp. 1 ] There is no mention about what is done, if anything, in response to this message. This also appears to be the last time before 9/11 that FBI field offices are tasked to work on any Muslim extremist threat in the US. [9/11 Commission, 7/24/2004, pp. 264]
Mid April 2001: 9/11 Hijackers Alhazmi and Hanjour Mention Jihad to Roommates
While staying in a flat in Alexandria, Virginia (see Early April-Early May, 2001), 9/11 hijackers Nawaf Alhazmi and Hani Hanjour tell two roommates that they had thought of going to Afghanistan for jihad. According to the 9/11 Commission, “The al-Qaeda operatives spent little time with their roommates, but did mention at one point that they had considered going to Afghanistan for jihad.” [9/11 Commission, 7/24/2004, pp. 523] In fact, Alhazmi, an al-Qaeda veteran, has already spent time in Afghanistan (see 1993-1999). Hanjour may also have traveled to Afghanistan already (see (Early 2000-November 2000)). Alhazmi made similar comments when he lived in San Diego (see (Spring 2000)).
April 17-26, 2001: Joint Chiefs of Staff Holds Exercise for Continuity of Government if US is Attacked; Proposal to Simulate Airliner Crash into Pentagon Rejected
The Joint Chiefs of Staff holds a large, worldwide exercise called Positive Force, which focuses on the Defense Department’s ability to conduct large-scale military operations and coordinate these operations. [Chairman of the Joint Chiefs of Staff, 8/14/2000 ] The 2001 Positive Force exercise is a “continuity of operations exercise,” meaning it deals with government contingency plans to keep working in the event of an attack on the US. [Guardian, 4/15/2004] Over a dozen government agencies, including NORAD, are invited to participate. The exercise prepares them for various scenarios, including non-combatant evacuation operations, cyber attacks, rail disruption, and power outages. It includes “a series of simulated attacks against the maritime, surface and aviation sectors” of America’s national security transportation infrastructure. [US Congress, 5/8/2001; Provider Update, 10/2001; GlobalSecurity (.org), 6/9/2002] Apparently, one of the scenarios that was considered for this exercise involved “a terrorist group hijack[ing] a commercial airliner and fly[ing] it into the Pentagon.” But the proposed scenario, thought up by a group of Special Operations personnel trained to think like terrorists, was rejected. Joint Staff action officers and White House officials said the additional scenario is either “too unrealistic” or too disconnected to the original intent of the exercise. [Air Force Times, 4/13/2004; Boston Herald, 4/14/2004; Washington Post, 4/14/2004; New York Times, 4/14/2004; Guardian, 4/15/2004]
April 18, 2001: FAA Warns Airlines About Middle Eastern Hijackers
The FAA sends a warning to US airlines that Middle Eastern militants could try to hijack or blow up a US plane and that carriers should “demonstrate a high degree of alertness.” The warning stems from the April 6, 2001, conviction of Ahmed Ressam over a failed plot to blow up Los Angeles International Airport during the millennium celebrations. This warning expires on July 31, 2001. [Associated Press, 5/18/2002] This is one of 15 general warnings issued to airlines in 2001 before 9/11 (see January-August 2001), but it is more specific than usual. [CNN, 3/2002; CNN, 5/17/2002]
April 18-May 2, 2001: 9/11 Hijacker Alshehhi Spends Time in Egypt; His Purpose Is Unknown
On April 18, 2001, future 9/11 hijacker Marwan Alshehhi flies from Miami, Florida, to Cairo, Egypt, via Amsterdam, Netherlands. He returns on May 2 by the same route. The 9/11 Commission will later comment, “We do not know the reason for this excursion.” Alshehhi bought the tickets only two days before his trip. [Federal Bureau of Investigation, 10/2001, pp. 135-140 ; 9/11 Commission, 6/16/2004] Alshehhi allegedly meets with hijacker Mohamed Atta’s father, Mohamed al-Amir Awad al-Sayed Atta, who lives in Cairo. The father will later tell investigators that Alshehhi came to pick up Atta’s international driver’s license. However, further investigation will determine that Atta has it with him already. [McDermott, 2005, pp. 216, 300]
April 19-20, 2001: President Bush Warned ‘Bin Laden Planning Multiple Operations’
On April 19, 2001, the interagency Counterterrorism Security Group (CSG) chaired by counterterrorism “tsar” Richard Clarke discusses recent reports that al-Qaeda leader Abu Zubaida is planning an attack. The next day, a Senior Executive Intelligence Brief (SEIB) with the title “Bin Laden Planning Multiple Operations” is sent to top White House officials. The New York Times will later report that President Bush and Vice President Cheney were among those who received this warning. Since SEIBs are usually based on previous days’ President Daily Briefings, President Bush probably learned about this report on April 19 (see January 20-September 10, 2001). [New York Times, 4/18/2004; 9/11 Commission, 7/24/2004, pp. 255; US District Court of Eastern Virginia, 5/4/2006, pp. 2 ]
