After the September 11, 2001 attacks, the United States government responded by commencing immediate rescue operations at the World Trade Center site, grounding civilian aircraft, and beginning a long-term response that included official investigations, legislative changes, military action, and restoration projects.
Immediately following the attacks, massive search and rescue operations were launched, and terrorism investigations led to the declaration of War on Terrorism that launched military engagements in Afghanistan and Iraq. The 9/11 Commission inspected the causes and motives of the attacks, and released its findings in the 9/11 Commission Report.
As a result of the attacks, the U.S. federal government enacted the Homeland Security Act of 2002, creating the Department of Homeland Security, and the USA PATRIOT Act, to help detect and prosecute terrorism and other crimes.[1] Subsequent clean-up and restoration efforts led to the rebuilding of Lower Manhattan, and federal grants helped support the development of the National September 11 Memorial & Museum, both of which opened in the early 2010s.
- ^ "The USA PATRIOT Act: Preserving Life and Liberty". United States Department of Justice. Archived from the original on January 2, 2010. Retrieved September 4, 2011.