This book critically examines the ethical implications of government surveillance in the context of national security. It explores the tension between the need for intelligence gathering and the protection of civil liberties, analyzing the ethical frameworks that guide government surveillance practices. The book also discusses the legal aspects of government surveillance, including the Foreign Intelligence Surveillance Act (FISA) and other relevant laws. With in-depth analysis and case studies, it offers a comprehensive exploration of the ethical and legal dimensions of government surveillance, making it a valuable resource for those interested in understanding the impact of surveillance on civil liberties.