Bradley Campbell is a professor of sociology at California State University, Los Angeles. His work examines moral conflict, including violent conflicts such as genocide as well as nonviolent conflicts on college campuses over politics and free speech. He is the author of The Geometry of Genocide: A Study in Pure Sociology and co-author of The Rise of Victimhood Culture: Microaggressions, Safe Spaces, and the New Culture Wars. He has also co-authored op-ed articles about contemporary moral conflicts that have appeared in Time, The Chronicle of Higher Education, and the New York Times.