Robert Melson is political professor at Purdue University in West Lafayette, Ind., and current president of the International Association of Genocide Scholars, which he co-founded in 1995. His primary area of research is ethnic conflict and genocide, and he has written widely on the topic.

Alan Kuperman is associate professor of public affairs at the University of Texas at Austin. He is author of The Limits of Humanitarian Intervention: Genocide in Rwanda (Brookings Institution Press, 2001) and co-editor of Gambling on Humanitarian Intervention: Moral Hazard, Rebellion, and Civil War (Routledge, 2006).

Helmut Walser Smith is Martha Rivers Ingram Chair of History at Vanderbilt University and Director of the Max Kade Center for European and German. He is author of The Holocaust and Other Genocides: History, Representation, Ethics (Vanderbilt University Press, 2002).

Debórah Dwork is a senior research scholar with the Strassler Family Center for Holocaust and Genocide Studies at Clark University in Worcester, Mass. She is an expert on Holocaust history and education.

Randolph L. Braham is director of the Rosenthal Institute for Holocaust Studies at the City University of New York. He is author of The Politics of Genocide: The Holocaust in Hungary (Wayne State University Press, 2000) and The Vatican and the Holocaust (East European Monographs, 2000).

Timothy Longman is director of the African Studies Centre at Boston University and author of Commanded by the Devil: Christianity and Genocide in Rwanda (Cambridge University Press).

Michael N. Dobkowski is professor of religious studies at Hobart and William Smith Colleges in Geneva, N.Y., and co-editor of The Coming Age of Scarcity: Preventing Mass Death and Genocide in the 21st Century (Syracuse University Press, 1998).

is a nonprofit organization dedicated to promoting equality of Muslim women throughout the world. It is based in Los Angeles.

Shahed Amanullah is founder and editor in chief of altmuslim, a website with contributors from across the globe writing on Muslim life, politics and culture.