Graham Allison is the Douglas Dillon Professor of Government at Harvard University where he has taught for five decades.?Allison is a leading analyst of national security with special interests in nuclear weapons, Russia, China, and decision-making.

Philip Zelikow,faculty senior fellow, is the White Burkett Miller Emeritus Professor of History at?the University of Virginia, where he has also served as dean of the Graduate School and director of the Miller Center.?His scholarly work has focused on critical episodes in American and world history.?