9/11 Commission Report Executive Summary

1 THE 9/11 COMMISSIONREPORTF inal Report of theNational Commission on TerroristAttacks Upon the United Statesexecutive Summary Thomas Ben-VenisteFred F. FieldingJamie S. GorelickSlade GortonLee chairBob KerreyJohn F. LehmanTimothy J. RoemerJames M. AccollaStaff AssistantAlexis AlbionProfessional Staff MemberScott H. Allan, A. AzzarelloCounselCaroline BarnesProfessional Staff MemberWarren BassProfessional Staff MemberAnn M. BennettInformation Control OfficerMark Staff MemberMadeleine BlotCounselAntwion M. BlountSystems EngineerSam BrinkleyProfessional Staff MemberGeoffrey Scott BrownResearch AssistantDaniel BymanProfessional Staff MemberDianna CampagnaManager of OperationsSamuel CaspersenCounselMelissa A.

2 CoffeyStaff AssistantLance ColeConsultantMarquittia L. ColemanStaff AssistantMarco A. CorderoProfessional Staff MemberRajesh DeCounselGeorge W. DelgrossoInvestigatorGerald Staff MemberThomas Staff MemberSteven M. DunneDeputy General CounselThomas FalkEditorJohn J. Farmer, Counsel & Team LeaderAlvin S. FelzenbergDeputy for CommunicationsCOMMISSIONSTAFFP hilip Zelikow, Executive DirectorChristopher A. Kojm,Deputy Executive DirectorDaniel Marcus,General Counsel Lorry M. FennerProfessional Staff MemberSusan GinsburgSenior Counsel & Team LeaderT. Graham GiustiSecurity OfficerNicole Marie GrandrimoProfessional Staff MemberDouglas N. GreenburgCounselBarbara A.

3 GreweSenior Counsel,Special ProjectsElinore Flynn HartzFamily LiaisonLeonard R. HawleyProfessional Staff MemberL. Christine HealeySenior Counsel & Team LeaderKaren HeitkotterExecutive SecretaryWalter IIProfessional Staff MemberC. Michael HurleySenior Counsel & Team LeaderDana J. HydeCounselJohn W. IvicicSecurity OfficerMichael W. JamersonInternBonnie JohnstoneProfessional Staff MemberStephanie L. KaplanSpecial Assistant & Managing EditorMiles , Staff MemberJanice L. KephartCounselHyon KimCounselKatarzyna KozaczukFinancial AssistantGordon Nathaniel LedermanCounselDaniel J. LeopoldStaff AssistantSarah Webb LindenProfessional Staff MemberDouglas J.

4 MacEachinProfessional Staff Member & Team LeaderErnest R. MaySenior AdviserJoseph McBrideInternJames MillerProfessional Staff MemberKelly MooreProfessional Staff MemberCharles M. PereiraProfessional Staff MemberJohn RaidtProfessional Staff MemberJohn RothSenior Counsel & Team LeaderPeter RundletCounselLloyd D. SalvettiProfessional Staff MemberKevin J. ScheidProfessional Staff Member & Team LeaderKevinShaefferProfessional Staff MemberTracy for Administration & FinanceDietrich L. SnellSenior Counsel & Team LeaderJonathan DeWees StullCommunications AssistantLisa Marie SullivanStaff AssistantQuinn John Tamm, Staff MemberCatharine AssistantYoel TobinCounselEmily Landis WalkerProfessional Staff Member & Family LiaisonGarth WermterSenior IT ConsultantSerena YerkesPublic Affairs AssistantCOMMISSION STAFF THE 9/11 COMMISSIONREPORT Executive Summary We present the narrative of this Report and the recommendations thatflow from it to the President of the United States, the United States Congress,and the American people for their consideration.

5 Ten Commissioners fiveRepublicans and five Democrats chosen by elected leaders from our nation scapital at a time of great partisan division have come together to present thisreport without have come together with a unity of purpose because our nation demandsit. September 11, 2001, was a day of unprecedented shock and suffering in thehistory of the United nation was NATION TRANSFORMEDAt 8:46 on the morning of September 11, 2001, the United States became anation airliner traveling at hundreds of miles per hour and carrying some 10,000gallons of jet fuel plowed into the North Tower of the World Trade Center inLower Manhattan.

6 At 9:03, a second airliner hit the South Tower. Fire andsmoke billowed ,glass,ash,and bodies fell Twin Towers,where up to 50,000 people worked each day, both collapsed less than 90 min-utes 9:37 that same morning, a third airliner slammed into the western face ofthe 10:03,a fourth airliner crashed in a field in southernPennsylvania. It had been aimed at the United States Capitol or the WhiteHouse, and was forced down by heroic passengers armed with the knowledgethat America was under than 2,600 people died at the World Trade Center; 125 died at theEXECUTIVESUMMARY 2 THE 9/11 Commission REPORTP entagon; 256 died on the four planes.

7 The death toll surpassed that at PearlHarbor in December immeasurable pain was inflicted by 19 young Arabs acting at the behestof Islamist extremists headquartered in distant Afghanistan. Some had been inthe United States for more than a year, mixing with the rest of the four had training as pilots, most were not well-educated. Most spokeEnglish poorly, some hardly at all. In groups of four or five, carrying with themonly small knives, box cutters, and cans of Mace or pepper spray, they hadhijacked the four planes and turned them into deadly guided did they do this? How was the attack planned and conceived? How didthe government fail to anticipate and prevent it?

8 What can we do in thefuture to prevent similar acts of terrorism?A Shock, Not a SurpriseThe 9/11 attacks were a shock, but they should not have come as a extremists had given plenty of warning that they meant to killAmericans indiscriminately and in large numbers. Although Usama Bin Ladinhimself would not emerge as a signal threat until the late 1990s, the threat ofIslamist terrorism grew over the February 1993, a group led by Ramzi Yousef tried to bring down theWorld Trade Center with a truck bomb. They killed six and wounded a by Omar Abdel Rahman and others to blow up the Holland andLincoln tunnels and other New York City landmarks were frustrated when theplotters were arrested.

9 In October 1993, Somali tribesmen shot down hel-icopters,killing 18 and wounding 73 in an incident that came to be known as Black Hawk down. Years later it would be learned that those Somali tribes-men had received help from al early 1995,police in Manila uncovered a plot by Ramzi Yousef to blowup a dozen airliners while they were flying over the Pacific. In November1995,a car bomb exploded outside the office of the manager forthe Saudi National Guard in Riyadh, killing five Americans and two others. InJune 1996, a truck bomb demolished the Khobar Towers apartment complex inDhahran,Saudi Arabia,killing 19 servicemen and wounding was carried out primarily by Saudi Hezbollah, an organization that hadreceived help from the government of 1997,the intelligence community viewed Bin Ladin as a fin-ancier of terrorism, not as a terrorist leader.

10 In February 1998, Usama BinLadin and four others issued aself-styled fatwa, publicly declaring that it wasGod s decree that every Muslim should try his utmost to kill any American,military or civilian, anywhere in the world, because of American occupa- Executive SUMMARY3tion of Islam s holy places and aggression against August 1998, Bin Ladin s group, al Qaeda, carried out near-simultaneoustruck bomb attacks on the embassies in Nairobi, Kenya, and Dar es Salaam, attacks killed 224 people, including 12 Americans, and woundedthousands December 1999, Jordanian police foiled a plot to bomb hotels and othersites frequented by American tourists, and a Customs agent arrested AhmedRessam at the Canadian border as he was smuggling in explosives intend-ed for an attack on Los Angeles International October 2000, an al Qaeda team in Aden,Yemen, used a motorboat filledwith explosives to blow a hole in the side of a destroyer, the USS Cole, almostsinking the vessel and killing 17 American 9/11 attacks on the World Trade Center and the Pentagon were farmore elaborate, precise, and destructive than any of these earlier assaults.