At the CIA's top-secret training facility near Williamsburg, Virginia, known as "The Farm," new recruits learn the shadowy world of espionage—essentially, how to get people to spill their most closely guarded secrets.

Jim Olson, who spent 31 years as a CIA officer and even served as Chief of Counterintelligence, knows this world inside and out. During the Cold War, Olson worked in Moscow, trying to convince Russians to betray their country and share secret information. He explained to CN...