Overbooked flights, robot battlefield patients, Goodyear’s strategy…

A United gate agent checks passengers in by hand at the United Airlines terminal in Chicago's O'Hare International Airport Thursday, July 2, 2009, after computer problems grounded all United flights at the airport causing long delays and lines for travelers headed out for the Fourth of July holiday weekend. The outage involved all of United's computers at O'Hare, forcing many delays and some cancellations, said airline spokeswoman Robin Urbanski. (AP Photo/M. Spencer Green)