Report which discusses issues related to the North Atlantic Trade Organization (NATO) and the European Union (EU) including the level of involvement of the entities in using political and military actions to defend against terrorism and proliferation, the types of military forces necessary, the role of the EU in crisis management, the appropriateness of decision-making procedures to respond to emerging threats, and the role of other international institutions.

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This report is a comparison of the laws of the United Kingdom and of the United States that govern criminal and intelligence investigations of terrorist activities. Both systems rely upon a series of statutory authorizations: in the case of the United States primarily the Foreign Intelligence Surveillance Act and the Electronic Communications Privacy Act; in the case of the United Kingdom, the Regulation of Investigatory Powers Act, the Police Act, the Intelligence Services Act. Among other differences, the U.S. procedures rely more heavily upon judicial involvement and supervision, while those of the UK employ other safeguards. The UK procedures afford greater latitude to arrest, detain and supervise suspected terrorists than those available in the United States.