The Inspector Generals of the Department of Defense, Department of Justice, Central Intelligence Agency, National Security Agency, and Office of the Director of National Intelligence have jointly published this unclassfied report on President Bush's surveillance program. "In the weeks following the terrorist attacks of September 11, 2001, the President authorized the National Security Agency (NSA) to conduct a classified program to detect and prevent further attacks in the United States. As part of the NSA's classified program, several different intelligence activities were authorized in Presidential Authorizations, and the details of these activities changed over time. The program was reauthorized by the President approximately every 45 days, with certain modifications. Collectively, the activities carried out under these Authorizations are referred to as the 'President's Surveillance Program' or 'PSP'. One of the activities authorized as part of the PSP was the interception of the content of communications into and out of the United States where there was a reasonable basis to conclude that one party to the communication was a member of al-Qa'ida or related terrorist organizations. This aspect of the PSP was publicly acknowledged and described by the President, the Attorney General, and other Administration officials beginning in December 2005 following a series of articles published in The New York Times. The Attorney General subsequently publicly acknowledged the fact that other intelligence activities were also authorized under the same Presidential Authorization, but the details of those activities remain classified."
Joint Inspector General Report No. 2009-0013-AS
United States. Department of Justice. Office of the Inspector General
United States. Department of Defense. Office of the Inspector General
United States. Central Intelligence Agency. Inspector General
United States. Office of the Director of National Intelligence. Office of the Inspector General of the Intelligence Community
United States. National Security Agency. Office of Inspector General
United States Department of Justice, Office of Inspector General: http://www.usdoj.gov/oig/