Stanislav Petrov

FILE In this file photo taken on Thursday, Aug. 27, 2015, former Soviet missile defense forces officer Stanislav Petrov poses for a photo at his home in Fryazino, Moscow region, Russia. Petrov, a former Soviet military officer known in the West as "The man who saved the world'' for his role in averting a nuclear war over a false missile alarm, died in May at age 77. (AP Photo/Pavel Golovkin)
Pavel Golovkin / Associated Press
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