The USA PATRIOT Act of 2001
formally known as the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001, was signed into law by President George W. Bush on October 26, 2001, in direct response to the September 11 attacks and the 2001 anthrax attacks.
The law was introduced in the House of Representatives just days after the attacks and passed with overwhelming support, reflecting a swift legislative response to enhance national security.
It significantly expanded law enforcement and intelligence agencies' surveillance and investigative powers, including the ability to conduct wiretaps, access electronic communications, and obtain business records without a traditional court order, often using National Security Letters.
The act also included provisions to improve interagency communication, increase penalties for terrorism-related crimes, and condemn discrimination against Arab, Muslim, and Sikh Americans following the attacks.
Many of its provisions were subject to sunset clauses requiring periodic reauthorization, with key sections being extended through the PATRIOT Sunsets Extension Act of 2011 and the USA Freedom Act of 2015, which modified the controversial mass data collection program.
However, efforts to renew the law in 2020 failed in the House of Representatives, and as of that time, the act expired without being reauthorized, although federal agencies continue to operate under many of the authorities it granted.
