Scott Straus is associate professor of political science and international studies at the University of Wisconsin-Madison and author of The Order of Genocide: Race, Power, and War in Rwanda. Lars Waldorf, senior lecturer in international human rights law at the Centre for Applied Human Rights at the University of York, is coeditor of Localizing Transitional Justice: Interventions and Priorities after Mass Violence and Disarming the Past: Transitional Justice and Ex-Combatants.