Politics

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney campaigns at the Pensacola Civic Center in Pensacola, Fla., Saturday, Oct. 27, 2012. (AP Photo/Charles Dharapak)

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** FILE ** President Barack Obama speaks to supporters at a campaign event at Elm Street Middle School, Saturday, Oct. 27, 2012 in Nashua, N. H. (AP Photo/Pablo Martinez Monsivais)

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Republican vice presidential candidate Paul Ryan, R-Wis., speaks at a campaign event at the Gradall Industries plant in New Philadelphia, Ohio, Saturday, Oct. 27, 2012. (AP Photo/Phil Long)

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Rep. Shelley Berkley, D-Nev. heads to an early voting location to vote, Thursday, Oct. 25, 2012, in Las Vegas. Interest in this year's election is being driven by races between President Barack Obama and Mitt Romney, and U.S. Sen. Dean Heller, R-Nev., and his Democratic challenger, Berkley. (AP Photo/Julie Jacobson)

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Al Qaeda leader Ayman al-Zawahiri is seen here in a still image from a web posting by the terrorist group's media arm, as-Sahab, on July 27, 2011. (Associated Press)

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In this Sept. 14, 2012, file photo, Libyan military guards check one of the burnt out buildings at the U.S. Consulate in Benghazi, Libya, during a visit by Libyan President Mohammed el-Megarif to express sympathy for the death of U.S. Ambassador to Libya J. Christopher Stevens and his colleagues in the Sept. 11, 2012, attack on the consulate. (AP Photo/Mohammad Hannon, File)