FILE - A man walks past a Lockheed Martin logo as he walks through a section of the company's chalet bridging a road at Farnborough International Airshow in Farnborough, southern England, July 19, 2006. (AP Photo/Matt Dunham, File)

FILE - In this Jan. 25, 2011, file photo, is the Boeing Company logo on the property in El Segundo, Calif. (AP Photo/Reed Saxon, File)