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Arguably the most important \\u2018atomic\\u2019 spy of the 20th century, Klaus Fuchs was a German physicist who worked on the British and US-led atomic projects of the Cold War era. In 1950, Fuchs was caught passing vital secrets to the Soviet Union and sentenced to 14 years\\u2019 imprisonment.

Our exhibition curator Mark Dunton delves into Security Service files in our collection to uncover how the authorities managed to unmask Fuchs and secure his confession, and reveals a fascinating local connection with Kew.