FILE - In this Jan. 20, 2012 file photo, passengers queue up for a security check at Pudong International Airport in Shanghai, China. China's airlines and airports continue to have the worst flight

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FILE - In this Jan. 20, 2012 file photo, passengers queue up for a security check at Pudong International Airport in Shanghai, China. China's airlines and airports continue to have the worst flight delays in the world, according to a travel industry monitor. (AP Photo/Eugene Hoshiko, File) less 

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Associated Press
Fri, Jul 12, 2013 7:48 AM EDT