This book provides a comprehensive account of the origins of American policy on political Islam, chronicling the policy debates on Islamism in the United States over the course of time. The author then delves deeper into the US political scene to analyze the historical, political, cultural, and security issues that might help explain America's preoccupation with Islam and Muslims. The book also addresses the clash of civilizations debate and assesses the relative importance of culture and values in the words and deeds of US officials on political Islam.