Dr. Benjamin Katzeff Silberstein is a postdoctoral fellow at the Frieberg Center, where he researches the social history of North Korea. His work focuses on social control and surveillance in North Korean history, the intersection between economic and political control, as well as totalitarianism as a system of governance. He received his PhD in History in July 2021 from the University of Pennsylvania. His doctoral dissertation examines the evolution of surveillance in North Korea from 1954 until the present, using oral history interviews with close to 40 North Korean refugees in South Korea as well as North Korean archival materials.