Operation Farewell: The Spy Who Turned Soviet Espionage Against Itself

In 1981, a KGB officer secretly handed French intelligence thousands of documents exposing one of the Soviet Union’s most important technology-theft programs. Instead of simply shutting the operation down, American intelligence reportedly developed a more ingenious response: let the Soviets keep stealing—but make sure some of what they stole was flawed. Operation Farewell became a remarkable Cold War story in which espionage was turned against the spies themselves.