On today’s encore episode of the RealClearDefense podcast “Hot Wash,” host John Sorensen and RCD contributor John Waters speak with Calder Walton, author of a new book, “SPIES: The Epic Intelligence War Between the East and West.” Using archival evidence only declassified as recently as 2022, Walton looks at the 100 year espionage competition among the Soviet, American and British intelligence services. The book documents how double agents, disinformation, covert action, and assassinations helped shape The Cold War. Walton is the Assistant Director of the Harvard Belfer Center for Applied History and Intelligence Project. He is also the author of the three-volume "Cambridge History of Espionage and Intelligence" and "Empire of Secrets: British Intelligence, the Cold War, and the Twilight of Empire."