Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Counterintelligence: Operation Lemon Aid

Counterintelligence can be described as activities designed to prevent or thwart spying, intelligence gathering, and sabotage by an enemy or other foreign entity. This guide provides books, articles, reports, websites, and videos on the subject.

Operation Lemon Aid

Operation Lemon Aid-- an induced double agent operation-- was conceived, controlled, and concluded as a cooperative counterintelligence effort by the FBI and U.S. Naval Investigative Service (NIS).  Two Soviet employees of the UN Secretariat, Valdik Enger and Rudolf Chernyayev, were arrested for accepting classified information from Navy Lieutenant Commander Art Lindberg, who was acting as a double agent for the United States.  In 1978, Enger and Chernyayev were convicted of espionage and sentenced to 50 years in prison.

(From: https://www.cia.gov/library/readingroom/docs/CIA-RDP02T06251R000600010001-7.pdf)

Books

Video-- Operation Lemonade

In 1977, U.S. Navy lieutenant commander/double agent Arthur Lindberg worked with the FBI to uncover Soviet spies.

Articles/Reports

Online Resources