Suzanne Heim is project coordinator of the documentation project "The Persecution and Extermination of the European Jews by Nazi Germany 1933-1945" at the Institute for Contemporary History in Munich and Berlin, and she has previously been the Charles Revson Fellow at the U.S. Holocaust Memorial Museum, Washington, DC, and Research Director of the Max Planck Society-s Research Program on the History of the Kaiser Wilhelm Society in the National Socialist Era. She is the author of Plant Breeding and Agrarian Research in Kaiser-Wilhelm-Institutes 1933-1945: Calories, Caoutchouc, Careers (2008) and (with Gotz Aly) Architects of Annihilation: Auschwitz and the Logic of Destruction (2003) and editor of Autarkie und Ostexpansion: Pflanzenzucht und Agrarforschung im Nationalsozialismus (2002). Carola Sachse is full professor of contemporary history at the University of Vienna and, from 2000 to 2003, served as Research Director of the Max Planck Society-s Research Program on the History of the Kaiser Wilhelm Society in the National Socialist era. She is the editor (with Mark Walker) of Politics and Science in Wartime: Comparative Perspectives on the Kaiser Wilhelm Institutes (2005) and Die Verbindung nach Auschwitz: Biowissenschaften und Menschenversuche an Kaiser-Wilhelm-Instituten (2003) and author of Der Hausarbeitstag: Gerechtigkeit und Gleichberechtigung in Ost und West 1939-1994 (2002), Siemens, der Nationalsozialismus und die moderne Familie: Eine Untersuchung zur sozialen Rationalisierung in Deutschland im 20. Jahrhundert (1990), and Industrial Housewives: Women's Social Work in the Factories in Nazi Germany (1987). Mark Walker is John Bigelow Professor of History, Department of History, Union College, Schenectady, in New York and has received grants from the German Academic Exchange Service, the Social Science Research Council, and the Humboldt Foundation. He is the author of German National Socialism and the Quest for Nuclear Power, 1939-1949 (1989) and Nazi Science: Myth, Truth, and the German Atom Bomb (1995), and he has edited (with Monika Renneberg) Science, Technology, and National Socialism (1993), Science and Ideology: A Comparative History (2003), and (with Dieter Hoffmann) Physiker zwischen Autonomie und Anpassung - Die DPG im Dritten Reich (2007).