In this episode of FBI Case File Review, retired agent and veteran polygraph examiner Barry Colvert reviews the over 20 polygraph exams he conducted on the John Walker spy ring...Continue reading
Tag: Bob Hunter
079: Joe Wolfinger – Family Espionage, John Walker Spy Ring
Retired agent Joe Wolfinger reviews the investigation of John Walker, a retired U.S. Navy chief warrant officer and communications specialist who sold secrets about American military codes to the Soviets...Continue reading
