A United Airlines Boeing 787 Dreamliner is prepared for a flight at O'Hare International Airport after it arrived from Houston with United CEO Jeff Smisek, Boeing Company CEO Jim McNerney and more than 250 other passengers on board May 20, 2013 in Chicago, Illinois. The flight was the first passenger flight for the Boeing Dreamliner since it was grounded for electrical problems in January. (Credit: Getty Images)