What drives some to violence against the state while others, living in the same place at the same time, turn to nonviolent resistance? And in this age of Islamist terrorism and Islamophobia, does the practice of Islam encourage violence? Structural explanations of violence fail to answer these questions. In Whether to Kill, Stephanie Dornschneider applies the methodology of cognitive mapping to study the beliefs that motivate individuals to take up arms or engage in nonviolent activism. Using a double-paired comparison with control groups, Dornschneider conducted extensive...