Newly released FBI files explain a 70-year-old mystery:

One Brother Gave the Soviets the A-Bomb; The Other Was Honored for Designing US ICBMs

To hear the podcast of the author speaking about and elaborating on this article in the Nation magazine, in an interview by Nation contributing editor Jon Wiener, click here. The interview begins at the 14:10 point in the podcast. In April 1950, three months before Julius and Ethel Rosenberg were arrested as Soviet atomic spies, FBI director …