Holiday Travel Begins At Chicago's O'Hare Airport Ahead Of...

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Christian Lopez gets some rest on a cot in the hallway outside the... News PhotoAirport,Business,Chicago - Illinois,Commercial Airplane,Corridor,Finance,Flying,Full Length,Gulf Coast States,Horizontal,Human Interest,Illinois,O'Hare Airport,Resting,San Antonio - Texas,Transportation,Travel,USA,USO,WaitingPhotographer Collection: Getty Images News 2012 Getty ImagesCHICAGO, IL - DECEMBER 21: Christian Lopez gets some rest on a cot in the hallway outside the USO as he waits to catch a flight home to San Antonio at O'Hare International Airport on December 21, 2012 in Chicago, Illinois. Today is the busiest air travel day of the Christmas holiday, with an estimated 200,000 travelers expected to travel through O'Hare today. (Photo by Scott Olson/Getty Images)