Klaus Fuchs

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German physicist Klaus Fuchs joined the Communist Party of Germany but fled to England when Nazis took control on Germany in 1933. Professor Max Born of Edinburgh University helped get Fuchs out of an internment camp in Quebec. In 1943, Fuchs was sent to the U.S. to collaborate on the Manhattan Project under Hans Bethe. From 1945-1947, Fuchs admitted to sharing information about the Manhattan Project and hydrogen bomb to the Soviet Union and was sentenced to 14 years in prison. Upon his release, Fuchs emigrated into East Germany where he resumed his scientific career.