"This book is the first to examine the fraught relationship between the Federal Bureau of Investigation and a variety of religious groups that have developed in the United States in the century of the FBI's existence. Encompassing religious communities that run the gamut from established religious institutions to violent extremist groups, and covering a period that includes the World Wars, the Cold War, the Civil Rights movement, and 9/11, Truth Faith and Allegiance tackles questions of importance for understanding the history of American religion, the history of law enforcement, and the future of religious liberty"--Provided by publisher.