What was the United Strengthening America Patriot Act?

The United Strengthening America Patriot Act, commonly known as the USA PATRIOT Act, was enacted in response to the September 11, 2001 terrorist attacks. It aimed to enhance law enforcement's ability to prevent and investigate terrorism by expanding surveillance capabilities, allowing for the sharing of information between agencies, and increasing penalties for terrorist activities. The act has been controversial, with critics arguing that it infringes on civil liberties and privacy rights. Various provisions have faced legal challenges and have been subject to periodic reauthorization and modification.