Obama Visits Argonne National Laboratory In Illinois

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Marine One helicopter with US President Barack Obama onboard prepares... News PhotoArrival,Barack Obama,Government,Helicopter,Horizontal,Illinois,Land,Marine One,Politics,Preparation,Talking,US President,USAPhotographer Collection: AFP 2013 AFPMarine One helicopter with US President Barack Obama onboard prepares to land in Argonne, Illinois, on March 15, 2013 as he arrive to tour the Argonne National Laboratory before speaking on American energy. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)