After the events of September 11, 2001, Stephen Coughlin was mobilized from his private sector career to the Intelligence Directorate at the Joint Chiefs of Staff to work in Targeting. Thus began his education in terrorism. In the years that followed, Coughlin earned recognition as the Pentagon's leading expert on the Islamic-based doctrines motivating jihadi groups that confront America. He came into demand as a trainer and lecturer at leading commands...