In response to the attacks, the United States waged the multi-decade global war on terror to eliminate hostile groups deemed terrorist organizations, as well as the foreign governments purported to support them.That evening, the Central Intelligence Agency informed President George W. Bush that its Counterterrorism Center had identified the attacks as having been the work of al-Qaeda under Osama bin Laden.Excluding the hijackers, the attacks killed 2,977 people, injured thousands more and gave rise to substantial long-term health consequences while also causing at least $10 billion in infrastructure and property damage.In 1996, Osama bin Laden of the Islamist militant organization al-Qaeda issued his first fatwā, which declared war against the United States and demanded the expulsion of all American soldiers from the Arabian Peninsula.[36][37][38] The 2004 9/11 Commission Report determined that the animosity which Mohammed, the principal architect of the 9/11 attacks, felt towards the United States had stemmed from his "violent disagreement with U.S. foreign policy favoring Israel".[62] In the 1998 fatwa, al-Qaeda identified the Iraq sanctions as a reason to kill Americans, condemning the "protracted blockade" among other actions that constitute a declaration of war against "Allah, his messenger, and Muslims".However, Lawrence Wright wrote that the hijackers chose the date when John III Sobieski, the King of Poland and Grand Duke of Lithuania, began the battle that turned back the Ottoman Empire's Muslim armies that were attempting to capture Vienna in 1683.[104] Testifying before the 9/11 Commission in April 2004, then—Attorney General John Ashcroft recalled that the "single greatest structural cause for the September 11th problem was the wall that segregated or separated criminal investigators and intelligence agents".[117] Concurrently, United Airlines Flight 93 departed from Newark International Airport in New Jersey;[115] originally scheduled to pull away from the gate at 8:00 a.m., the plane was running 42 minutes late.[107] On at least two of the hijacked flights—American 11 and United 93—the terrorists claimed over the PA system that they were taking hostages and were returning to the airport to have a ransom demand met, a clear attempt to prevent passengers from fighting back.[149] In an April 2002 interview, Khalid Sheikh Mohammed and Ramzi bin al-Shibh, who are believed to have organized the attacks, said Flight 93's intended target was the United States Capitol, not the White House.[169] As exemplified in the photograph The Falling Man, more than 200 people fell to their deaths from the burning towers, most of whom were forced to jump to escape the extreme heat, fire and smoke.[172] At the World Trade Center complex, 414 emergency workers died as they tried to rescue people and fight fires, while another law enforcement officer was killed when United 93 crashed.[216] Communications equipment on top of the North Tower was also destroyed, with only WCBS-TV maintaining a backup transmitter on the Empire State Building, but media stations were quickly able to reroute the signals and resume their broadcasts.After both of the Twin Towers had been hit, more fighters were scrambled from Langley Air Force Base in Virginia at 9:30 a.m.[243] At 10:20 am, Vice President Dick Cheney issued orders to shoot down any commercial aircraft that could be positively identified as being hijacked.The NSA commenced warrantless surveillance of telecommunications, which was sometimes criticized as permitting the agency "to eavesdrop on telephone and e-mail communications between the United States and people overseas without a warrant".[265] Six days after the attacks, President Bush made a public appearance at Washington, D.C.'s largest Islamic Center where he acknowledged the "incredibly valuable contribution" of American Muslims and called for them "to be treated with respect".[269] Two dozen members of Osama bin Laden's family were urgently evacuated out of the country on a private charter plane under FBI supervision three days after the attacks.[283][284] Although Palestinian Authority (PA) president Yasser Arafat also condemned the attacks, there were reports of celebrations of disputed size in the West Bank, Gaza Strip, and East Jerusalem.[292] United Nations Security Council Resolution 1368 condemned the attacks and expressed readiness to take all necessary steps to respond and combat terrorism in accordance with their Charter.[298] In a speech to Congress nine days after the attacks, which Blair attended as a guest, President Bush declared "America has no truer friend than Great Britain".[308][309] According to Politico Magazine, following the attacks, Ali Khamenei, the Supreme Leader of Iran, "suspended the usual 'Death to America' chants at Friday prayers" temporarily.Christine Todd Whitman, administrator of the EPA in the attacks' aftermath, was heavily criticized by a U.S. District Judge for incorrectly saying that the area was environmentally safe.The FDNY and NYPD had rotated hundreds, if not thousands, of different personnel from all over New York City to the pile without adequate respirators and breathing equipment that could have prevented future diseases.Workers were instead preparing in bordering countries like Pakistan, China and Uzbekistan to prevent a potential "humanitarian catastrophe", amid a critically low food stock for the Afghan population.[364] Approximately one month after the attacks, the United States led a broad coalition of international forces to overthrow the Taliban regime from Afghanistan for their harboring of al-Qaeda.[369] Immediate responses to 9/11 included greater focus on home life and time spent with family, higher church attendance, and increased expressions of patriotism such as the flying of American flags.[370] The radio industry responded by removing certain songs from playlists, and the attacks have subsequently been used as background, narrative, or thematic elements in film, music, literature, and humour.Work on rebuilding the main World Trade Center site was delayed until late 2006 when leaseholder Larry Silverstein and the Port Authority of New York and New Jersey agreed on financing.[486] The Sphere by the German sculptor Fritz Koenig is the world's largest bronze sculpture of modern times, and stood between the Twin Towers on the Austin J. Tobin Plaza from 1971 until the attacks.
One of three observable falls from the South Tower.
[
153
]
A similar photograph of a victim from the North Tower titled
The Falling Man
gained wide acclamation
Mohamed Atta
was one of the main planners of the attacks and the operational leader, responsible for crashing Flight 11 into the North Tower.
The cover of the
9/11 Commission Report
, a 585-page report released in 2004, on events leading up to the attacks and steps recommended to avoid a future terrorist attack
The exterior support columns from the lower level of the South Tower remained standing after the
building collapsed