CATHERINE EPSTEIN is Dean of the Faculty and Professor of History at Amherst College. She is the prize-winning author of Model Nazi: Arthur Greiser and the Occupation of Western Poland (2010). Her previous publications also include The Last Revolutionaries: German Communists and Their Century (2003) and A Past Renewed: A Catalog of German-Speaking Refugee Historians in the United States after 1933 (1993).