Ethel Rosenberg was aware of her husband's activities (as was Priscilla Hiss).

ECONOMIST: History of espionage: Dark secrets | The

This anniversary also recalls that during the Cold War American spies, such as Julius and Ethel Rosenberg, stole atomic secrets and sent them to Moscow.

FORBES: Fact and Comment

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