The USS Nimitz, a nuclear-powered aircraft carrier which is currently supplemented by biofuel, sails about 150 miles north of the island of Oahu during the RIMPAC Naval exercises off Hawaii July ... more 
The USS Nimitz, a nuclear-powered aircraft carrier which is currently supplemented by biofuel, sails about 150 miles north of the island of Oahu during the RIMPAC Naval exercises off Hawaii July 18,2012. The USS Nimitz and four other ships in its strike group moved into the Red Sea early on Monday, U.S. defense officials said, describing the move as "prudent planning" in case the ships are needed for military action against Syria. (REUTERS/Hugh Gentry) less 
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Reuters | Photo By REUTERS/Hugh Gentry
Mon, Sep 2, 2013 10:00 AM EDT