Safety official: Battery in 787 swollen from overheating

A Polish Airlines employee talks on the phone in a darkened ticket counter waiting for flight 003 from Warsaw, a Boeing 787 airplane, at Chicago's O'Hare International Airport Wednesday, Jan. 16, 2013. The FAA grounded all Boeing 787 Dreamliner airplanes pending safety checks of the planes lithium batteries and passengers ticketed on the return flight were rebooked on other airlines. (AP Photo/Charles Rex Arbogast)