CI Press, Episode 52: The Walker Files: Inside the Cold War Spy Ring with Dave Snell

In this episode, cohosts Jeremy Clark and Ryan Rambo are joined by Dave Snell (aka Doug) who returns to walk through the John A. Walker Jr. espionage case.  Walker was a Navy radioman who handed over cryptographic key material to the Soviets starting in 1967, built a family-and-friend spy ring, and compromised U.S. naval communications for years.

Jeremy, Ryan, and Dave cover the motivations, tradecraft (dead drops, Vienna meetings), the arrest, and the long-lasting impact on counterintelligence practice, plus practical lessons about insider threat indicators, vetting, and reporting.