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Counterintelligence: Bernard Julius Otto Kuehn

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.

Bernard Julius Otto Kuehn

Bernard Julius Otto Kuehn and his wife were German-born spies for the Japanese government. They provided the Japanese with intelligence related to the attack on Pearl Harbor, Hawaii on December 7, 1941. After serving a long prison sentence, Kuehn and his family were deported to Germany. 

(From: https://vault.fbi.gov/bernard-julius-otto-kuehn)

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