Lona Cohen
American spy for the Soviet Union (1913-1992) · United States · On the map · Died at 79
Lona Cohen, born Leontine Theresa Petka, also known as Helen Kroger, was an American who spied for the Soviet Union. She is known for her role in smuggling atomic bomb diagrams out of Los Alamos. She was a communist activist before marrying Morris Cohen. The couple became spies because of their communist beliefs.
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