In this image released by the press office of president-elect Enrique Pena Nieto on Saturday Dec. 1, 2012, Mexico's outgoing president, Felipe Calderon, left, gives a Mexican flag to president-elect Enrique Pena Nieto during the official transfer of command ceremony at the National Palace in Mexico City, Saturday Dec. 1, 2012. Pena Nieto will be officially sworn in as Mexico's new President during a ceremony at the National Congress later on Saturday. (AP Photo/Press Office of president-elect Enrique Pena Nieto)
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