Robert Braun received his PhD from Cornell University in 2017. Before joining Berkeley, he taught sociology and political science at Northwestern University. His research focuses on civil society and intergroup relationships in times of social upheaval and he has been published in the American Journal of Sociology and the American Political Science Review. His first book "Protectors of Pluralism" tries to explain why some local communities step up to protect victims of mass persecution while others refrain from doing so and is forthcoming at Cambridge University Press. His second book project, "Blood Lines", traces the roots of racial Anti-Semitism by studying the geographical spread of xenophobic themes in children's stories throughout central Europe.