Though terrorist groups are a fixture of contemporary politics and warfare, the world has never witnessed the degree of sheer brutality demonstrated by the group known as ISIS-- the Islamic State of Iraq and the Levant. Its sadistic disregard for human life, sophisticated use of social media, acquisition of territory, and ability to attract foreign fighters is unprecedented. Stern and Berger analyze the tools ISIS uses both to frighten innocent citizens and lure new soldiers, and offer practical ideas on potential government responses.
