In the mid-1990s the transcripts of secret Soviet transmissions, the "Venona" traffic, were released, showing that Julius Rosenberg had worked for the Soviets.

BBC: Today

Alger Hiss and Julius Rosenberg were Soviet spies.

ECONOMIST: History of espionage: Dark secrets | The

Eisner, who grew up in Manhattan, the child of left-leaning parents who hosted fundraisers for Ethel and Julius Rosenberg (one of his earliest memories is of Paul Robeson singing) was never the smartest kid in the room, but he always wanted to get As and spent a lot of time studying how the smart kids learned.

WSJ: The Unlikely Reformer | Innovator of the Year 2012 Education