Ernest R. May is Charles Warren Professor of American History at Harvard University. He is co-author, with Philip D. Zelikow, of The Kennedy Tapes: Inside the White House During the Cuban Missile Crisis.Philip D. Zelikow is former Director of the Miller Center of Public Affairs and White Burkett Miller Professor of History at the University of Virginia and is currently serving as counselor of the State Department. Zelikow recently served as the Executive Director of the National Commission on Terrorist Attacks Upon the United States, better known as the "9/11 Commission." Zelikow is co-author, with Ernest R. May, of The Kennedy Tapes: Inside the White House During the Cuban Missile Crisis.