CHICAGO, IL - SEPTEMBER 24: Passengers wait in line to go through security screening at O'Hare International Airport's Terminal 1 shortly after the terminal was reopened on September 24, 2014 in Chicago, Illinois. The ticketing and baggage claim areas of the terminal were evacuated for nearly two hours after a after an unattended bag was discovered around 9:30 this morning. (Photo by Scott Olson/Getty Images)
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Getty Images News Scott Olson