defected to the United States and provided the information that eventually led to Pelton's arrest. , the recording device captured by the Soviets was on public display at the Great Patriotic War museum in Moscow. See also Espionage Act of 1917 - The law under which Pelton was prosecuted. NSA fiber-optic tapping References Further reading Covers this incident and also includes a description of the Walker spy ring role in its dangerous compromise of technical secrets of some of the tactical capabilities of U.S. Navy nuclear submarines and critical covert intelligence gathering operations during the Cold War. Robert Williscroft (23 September 2014) Operation Ivy Bells. Starman Press. (a novel by one who was there.) External links "Spy Book Fact of the Day: Ivy Bells" from the Spy Book: The Encyclopedia of Espionage promotional site at Random House "Operation Ivy Bells Sea of Okhotsk, Russia, 1970s-1981" at Special Operations.com Red November, Inside the Secret U.S. Soviet Submarine War 1971 establishments in the United States 1971 in the Soviet Union 1981 disestablishments in the United States 1981 in the Soviet Union Ivy Bells Soviet Union–United States relations Ivy Bells Ivy Bells Sea of Okhotsk Signals intelligence Ivy Bells History of telecommunications 1981 in international relations 1970 in international relations 1971 in international relations Clandestine operations Espionage in the Soviet Union