Jimmy Carter

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U.S. President Jimmy Carter maneuvers the nuclear submarine U.S.S. Los Angeles at the wheel off the coast of Port Canaveral, Florida, Friday, May 27, 1977, while Admiral Hyman Rickover (behind Carter) looks on. (AP Photo)

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President Jimmy Carter tells newsmen of his submarine ride aboard the nuclear submarine U.S.S. Los Angeles, May 28, 1977. Adm. Hyman Rickover, left, who accompanied Carter on the all-day cruise, stands by. In background is the conning tower of the submarine.

AP7705270226_1

U.S. President Jimmy Carter maneuvers the nuclear submarine U.S.S. Los Angeles at the wheel off the coast of Port Canaveral, Florida, Friday, May 27, 1977, while Admiral Hyman Rickover (behind Carter) looks on. (AP Photo)

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President Jimmy Carter with Gov. James Hunt of North Carolina jog at Camp David in Thurmont, July 16, 1979. (AP Photo/Brendan Byrne)

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Former U.S. President Jimmy Carter speaks onstage with Mark Updegrove, director of the Lyndon B. Johnson Presidential Library in Austin, on the first day of the Civil Rights Summit, Tuesday, April 8, 2014, in Austin, Texas. (AP Photo/Statesman.com, Ralph Barrera, Pool)