Ph. D. in Religion and Culture, Florida State University, USA, 1975. Doctor of Divinity, Nazareth College of Rochester, USA, 1995. Project Director, U. S. Holocaust Memorial Museum (USHMM), Washington, 1988-1993. Director, U. S. Holocaust Research Institute, USHMM, Washington, D.C. 1993-1997. Hymen Goldman Professor of Theology, Department of Theology, Georgetown University, 1983-1997. Professor of Theology, The University of Judaism, 1998-present. He has also served as President and CEO of The Survivors of the Shoah, A Visual History Foundation, located in Los Angeles, CA

Publications include: Ed. A Mosaic of Victims: Non Jews Persecuted and Murdered by the Nazis (1990), The World must Know: The History of the Holocaust (1993), co-ed., Anatomy of the Auschwitz Death Camp (1994), Witness to the Holocaust: An Illustrated Documentary History of the Holocaust in the Words of its Victims, Perpetrators and Bystanders (1997), co-ed. The Holocaust and History: The Known, the Unknown, the Disputed and the Reexamined (1998), co-ed., Bombing of Auschwitz: Should the Allies Have Attempted It? (2000).