Project SOLO and the Seborers
On the Trail of a Fourth Soviet Spy at Los Alamos

Harvey Klehr and John Earl Haynes

Three individuals became well known among the Soviet spies who provided information to Soviet intelligence about the US nuclear program, the Manhattan Project, in Los Alamos. There was one more, Oscar Seborer, who, with his brother, defected to the Soviet Union in 1952. Seborer's role was only slowly revealed through information gathered by the FBI's project SOLO. But what he revealed of the US nuclear weapons program has yet to become clear.

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Posted: Oct 01, 2019 12:21 PM
Last Updated: Oct 01, 2019 12:21 PM