SPY Historian Vince Houghton sat down with historian Gregg Herken to discuss his new book The Georgetown Set: Friends and Rivals in Cold War Washington. Herken, the professor emeritus of modern American diplomatic history at the University of California, gives a behind-the-scenes history of postwar Washington – the close-knit group of journalists, spies, and government officials who planned and waged the Cold War over cocktails and dinner.