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U.S. government response to the September 11 attacks

From Alfawiki
United States government response to the September 11 attacks
Company typeGovernment response
IndustryNational security, counter-terrorism, emergency management
FoundedSeptember 11, 2001; 25 years ago (2001-09-11)
Area served
United States
Key people
Thomas Kean (9/11 Commission Chair), Ben Sliney (FAA Command Center national operations manager), Ashcroft (Attorney General)
ProductsRescue missions, investigations, legislative acts (Homeland Security Act, USA PATRIOT Act), military interventions, reconstruction efforts

Following the September 11, 2001 attacks, the U.S. government promptly initiated rescue missions at the World Trade Center location, halted civilian flights, and launched an extensive response encompassing official inquiries, legislative changes, military interventions, and reconstruction efforts.

Extensive search and rescue operations commenced immediately, while investigations into terrorism culminated in the declaration of the War on Terrorism, leading to military actions in Afghanistan and Iraq. The 9/11 Commission conducted a thorough analysis of the attacks’ origins and objectives, publishing its conclusions in the 9/11 Commission Report.

In reaction to these events, Congress passed the Homeland Security Act of 2002, which created the Department of Homeland Security, alongside the USA PATRIOT Act to strengthen capabilities for detecting and prosecuting terrorist activities. Federal resources were allocated to support cleanup and redevelopment initiatives in Lower Manhattan, including funding for the National September 11 Memorial & Museum, which opened during the early 2010s.

9/11 Commission Report

The National Commission on Terrorist Attacks Upon the United States, commonly referred to as the 9/11 Commission and chaired by former New Jersey Governor Thomas Kean, was formed in late 2002 to deliver a detailed report on the attacks, covering preparedness and immediate responses. The commission published its comprehensive findings on July 22, 2004, in the 9/11 Commission Report.

Internal CIA review

The Central Intelligence Agency Office of Inspector General performed a critical internal assessment of CIA activities prior to the attacks. This review criticized senior leadership for insufficiently addressing terrorism threats, including failing to prevent hijackers Nawaf al-Hazmi and Khalid al-Mihdhar from entering U.S. territory, as well as for inadequate information sharing with the FBI.

World Trade Center collapse

The U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) conducted a technical investigation into why the Twin Towers collapsed. This analysis evaluated building design, materials, and contributing factors with goals to:

  • Improve standards for building design, construction, upkeep, and operation
  • Offer enhanced tools and guidance for industry professionals and safety regulators
  • Revise building and fire codes and regulations
  • Increase public safety measures

Released on April 6, 2005, NIST’s report determined that impact from the planes stripped fireproofing from steel components. This allowed fires to weaken floor-support trusses, causing floors to bend downward and pull exterior columns inward. Damage to core columns led exterior columns to buckle, resulting in collapse. The investigation also highlighted insufficient stairwell reinforcement that obstructed evacuation above impact areas. NIST announced a forthcoming separate report addressing the collapse of Building 7 WTC.

Civilian aircraft grounding

For the first time in history, all nonemergency civilian flights across the United States and several other nations, including Canada, were immediately halted, leaving tens of thousands of travelers stranded globally. This directive was issued at 9:42 by FAA Command Center national operations manager Ben Sliney. The 9/11 Commission Report highlights that this extraordinary measure was carried out with precision, resulting in approximately 4,500 commercial and general aviation planes landing safely without any complications.

Invocation of the continuity of government

Plans for maintaining government operations and evacuating key leaders were activated promptly following the attacks. Nonetheless, Congress was not notified that the United States had entered continuity of government status until February 2002.

Rescue, recovery, and compensation

In the hours following the attacks in New York City, a vast search and rescue mission commenced, deploying over 350 search and rescue dogs. Initially, only a small number of injured individuals were discovered; ultimately, just twenty survivors were rescued from the debris.

The rescue and cleanup process extended over several months; fires smoldered within the rubble for weeks until the site was fully cleared by May 2002. Temporary wooden viewing platforms were constructed to allow public observation of the recovery crews but were closed on May 30, 2002.

Various relief funds offered financial support to survivors and families of victims. By the victim compensation deadline on September 11, 2003, a total of 2,833 claims had been submitted by relatives of those who lost their lives.

War on Terror

In response to the September 11 attacks, the Bush administration initiated a war on terror, seeking to capture Osama bin Laden and dismantle al-Qaeda, while preventing the emergence of new terrorist groups. This approach included imposing economic and military sanctions on countries suspected of harboring terrorists, alongside increased international intelligence cooperation and surveillance efforts. Early allegations linking Saddam Hussein to the attacks were later disproved.

For the first time ever, NATO invoked Article 5 on September 12, 2001, formally supporting the U.S. in its war on terror. In 2011, U.S. special operations forces located and killed Osama bin Laden in Abbottabad, Pakistan.

President Barack Obama announced the official end of combat operations in Afghanistan in 2014; however, roughly 15,000 U.S. troops remained stationed there. Between 2019 and August 2021, Presidents Donald Trump and Joe Biden completed the withdrawal of remaining forces, marking the conclusion of America's two-decade-long engagement.

On July 31, 2022, Ayman al-Zawahiri, Bin Laden’s successor as leader of Al-Qaeda, was eliminated by a U.S. drone strike in Kabul, Afghanistan.

Arrests

In the aftermath of the attacks, U.S. authorities detained 762 individuals suspected of involvement. On December 12, 2001, Fox News reported that approximately 60 detainees were Israeli nationals believed to be engaged in an ongoing effort to spy on American officials; some were identified as active members of Israeli military or intelligence services.

Ira Glaser, former head of the ACLU, pointed out that none of those held faced terrorism charges and criticized the Justice Department’s tactics as ineffective and damaging to civil rights.

Domestic Response

Following the launch of the operation to capture Osama bin Laden, President Bush visited the Islamic Center of Washington, urging the American public to recognize Arabs and Muslims as loyal citizens. Nevertheless, incidents of Islamophobia escalated sharply, with hate crimes targeting Muslims, Arabs, Middle Easterners, and South Asians increasing by more than sixteen times in the immediate aftermath of the attacks.

In response, Congress enacted the Homeland Security Act of 2002, which President Bush signed into law, establishing the Department of Homeland Security—the most significant reorganization of the U.S. government in recent decades. Furthermore, Congress passed the USA PATRIOT Act to strengthen capabilities for detecting and prosecuting terrorism; however, civil rights organizations criticized this legislation for diminishing judicial oversight and permitting intrusive law enforcement measures. The Bush Administration also authorized the National Security Agency to conduct warrantless surveillance on international communications without prior court authorization.

National Security Entry-Exit Registration System (NSEERS)

On June 6, 2002, Attorney General Ashcroft introduced rules instituting the National Security Entry-Exit Registration System (NSEERS). This program mandated that males aged 16 to 64 from specified foreign countries residing in the United States register with the Immigration and Naturalization Service (INS), undergo identity confirmation procedures including interviews, photography, and fingerprinting. NSEERS involved monitoring both arrivals and departures as well as a “call-in” registration system for individuals already present in the country. The Department of Justice implemented NSEERS under authority granted by the Immigration and Nationality Act of 1952—a provision that had fallen into disuse since the 1980s due to budgetary constraints. Exemptions were granted to permanent residents, diplomatic passport holders, and employees of international organizations. Ashcroft characterized those required to register as “individuals of heightened national security concern” who intended to remain longer than 30 days.

The initial phase of arrival registration commenced in October 2002, focusing on travelers from Iran, Iraq, Libya, Sudan, and Syria; a total of 127,694 individuals were processed before transitioning to a broader screening system. The “call-in” portion began in December 2002 for nationals from five countries but later expanded deadlines and included citizens from 23 Muslim-majority nations alongside Eritrea and North Korea. Failure to comply with registration requirements resulted in deportation proceedings; individuals violating visa conditions could post bail during these processes. Overall, NSEERS registered 82,880 people and identified 13,434 cases of visa violations. The program also impacted non-Muslim populations such as Iranian Jews. Phasing out of NSEERS started in May 2003.

The outcomes of NSEERS were mixed: Department of Justice officials reported arrests of 11 suspected terrorists, identification of more than 9,000 undocumented immigrants, and over 800 criminal suspects or deportable offenders. DOJ general counsel Kris Kobach hailed it as a “great success,” highlighting vulnerabilities in immigration enforcement exposed after September 11. Conversely, former INS director James W. Ziglar questioned its overall efficacy and allocation of resources. The September 11 Commission disputed assertions that NSEERS led to terrorism-related arrests.

In 2011, the Department of Homeland Security suspended NSEERS citing improved efficiency through alternative data collection methods but did not address civil liberties concerns raised by advocacy groups like the ACLU. Ultimately, the Obama administration formally ended NSEERS in 2016 to prevent its potential use as a registry targeting Muslims under the incoming Trump administration.

See also

External links

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