Nathan Safferstein, counterintelligence agent on World War II Manhattan Project, dies in NYC

Nathan Safferstein, a counterintelligence agent on the Manhattan Project to build the atomic bomb during World War II, died Tuesday night at his home in the Bronx after a long illness, his family said.

He was 92.

The genial native of Bridgeport, Conn., was barely 21 when circumstances suddenly propelled him from his job as a supermarket manager into the stealth world of a special agent....