Robert A. Pape is a professor of political science at the University of Chicago and director of the Program for International Security Politics. He is the author of Dying to Win: The Strategic Logic of Suicide Terrorism. Media contact is Jann Ingmire.

David S. Katz is a professor of the history of books and chairman of the history department at Tel Aviv University in Tel Aviv, Israel. He has written about fundamentalism and scriptural literalists.

Emmanuel Sivan is an emeritus professor of history at Hebrew University of Jerusalem in Israel and an expert in comparative fundamentalisms. He is a co-author, with Gabriel A. Almond and R. Scott Appleby, of Strong Religion: The Rise of Fundamentalisms Around the World, a publication in the Fundamentalism Project series.

Eliezer Don-Yehiya is a professor of political studies at Bar-Ilan University in Ramat Gan, Israel. He has written widely on varieties of Jewish extremism.

Richard T. Antoun was a professor emeritus of anthropology at the State University of New York at Binghamton. He wrote Understanding Fundamentalism: Christian, Islamic and Jewish Movements.

Charles B. Strozier is a history professor at the John Jay College of Criminal Justice of the City University of New York in New York City, and he is director of the Center on Terrorism there. He researches and writes about the psychology of religious extremism.

William Paul Williamson is an associate professor of psychology at Henderson State University in Arkadelphia, Ark., and an expert on the psychology of religion. He is a co-author of the 2005 edition of The Psychology of Religious Fundamentalism.

Akintunde E. Akinade is a visiting professor at the School of Foreign Service in Qatar at Georgetown University, Tx. He was previously an associate professor in the department of religion and philosophy at High Point University in High Point, N.C. He is an expert in fundamentalism in Africa.

Frank J. Lechner is an associate professor of sociology at Emory University in Atlanta. He contributed the essay “Fundamentalism” to the 1998 edition of the Encyclopedia of Religion and Society.