Book excerpt: Terrorism, Crime, and Public Policy describes the problem of terrorism; compares it to other forms of aggression, particularly crime and war; and discusses policy options for dealing with the terrorism. It focuses on the causes of terrorism with the aim of understanding its roots and providing insights toward policies that will serve to prevent it. The book serves as a single-source reference on terrorism and as a platform for more in-depth study, with a set of discussion questions at the end of each chapter. Individual chapters focus on the nature of terrorism, theories of aggression and terrorism, the history of terrorism, the role of religion, non-religious extremism and terrorism, the role of technology, terrorism throughout the modern world, responses to terrorism, fear of terrorism, short-term approaches and long-term strategies for preventing terrorism, balancing security and rights to liberty and privacy, and pathways to a safer and saner 21st century.