Retired agent Joe Wolfinger is interviewed about his supervision of the counterintelligence squad in Norfolk, VA and 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 for nearly 20 years. Walker also recruited his friend, brother and son and together they caused extensive damage to America's national security. The John Walker spy ring has been described as the "most damaging Soviet spy ring in history. Walker pled guilty and was sentenced to life in prison.

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