JOHN LEWIS GADDIS is an internationally renowned historian of the cold war. He has written extensively on the subject, including We Now Know: Rethinking Cold War History and The United States and the Origins of the World War, 1941-1947. Gaddis is on the advisory board of the Cold War International History Project. A senior fellow of the Hoover Institution from 2000 to 2002, he served as a consultant on the CNN television documentary Cold War. Gaddis resides in Connecticut.