This report focuses on two main National Security Agency (NSA) collection activities approved by the Foreign Intelligence Surveillance Court (FISC) established under the Foreign Intelligence Surveillance Act (FISA) of 1978. The first is the bulk collection of telephony metadata for domestic and international telephone calls. The second involves the interception of Internet-based communications.
This report discusses the need for cooperation between law enforcement and intelligence agencies and for human intelligence (humint), the use of agents to gather information, to counter terrorism and the risks associated with humint.
This report gives an overview of current intelligence issues of interest to the 112th Congress. It includes background and analysis including most recent development, ongoing Congressional concerns, specific issues for the 112th Congress, and a summary of related legislation from the 109th through the 112th Congresses.
This report will examine the detailed statutory structure provided by FISA and related provisions of E.O. 12333. In addition, it will discuss the decisions of the U.S. Foreign Intelligence Surveillance Court and the U.S. Foreign Intelligence Surveillance Court of Review
This report discusses the USA PATRIOT Act, which expanded the authority of four national security letter (NSL) statutes and created a fifth, and the USA PATRIOT Improvement and Reauthorization Act that amended the previous legislation. This is an abridged version of CRS Report RL33320, "National Security Letters in Foreign Intelligence Investigations: Legal Background and Recent Amendments".
This report discusses arguments surrounding intelligence reform legislation passed by Congress in December 2004 in response to the September 11th Terrorist Attacks and the legislation's potential impacts on the Department of Defense intelligence agencies, such as the National Security Agency, the National Reconnaissance Office, and the National Geospatial-Intelligence Agency. Updated December 21, 2004.
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