https://www.aclu.org/national-security/surveillance-under-patriot-act
Surveillance Under the Patriot Act
October 24, 2011 Hastily passed 45 days after 9/11 in the name of national security, the Patriot Act was the first of many changes to surveillance laws that made it easier for the government to spy on ordinary Americans by expanding the authority to monitor phone and email communications, collect bank and credit reporting records, and track the activity of innocent Americans on the Internet. While most Americans think it was created to catch terrorists, the Patriot Act actually turns regular citizens into suspects.
Source:
1. http://wyden.senate.gov/newsroom/press/release/?id=34eddcdb-2541-42f5-8f1d-19234030d91e
2. http://www.justice.gov/oig/special/s0803b/final.pdf
3. http://thescienceofsecurity.org/blog/CT%20Since%209-11_by_Breakthrough.pdf
4. http://www.justice.gov/oig/special/s0703b/final.pdf
5. http://www.justice.gov/oig/special/s0803b/final.pdf
6. Report of the Director of the Administrative Office of the United States Courts on Applications for Delayed-Notice Search Warrants and Extensions for fiscal year 2010, on file with the Administrative Office of the United States Courts.