Espionage and Intelligence | Chapter 3 Preface

After the terrorist attacks of September 11, 2001, President George W. Bush declared a war on terrorism. The nation’s intelligence agencies immediately implemented national security policies designed to prevent future terrorist attacks against the United States. Some policies expanded these agencies’ power to gather intelligence, giving them greater authority to conduct surveillance on, gather information about, and detain individuals suspected of plotting terrorist acts. Shortly thereafter, civil libertarians challenged these policies, renewing the debate over how to balance...

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