American Airlines customer service employee Michelle Flentge helps passenger Dianne Wujcica at O'Hare International Airport in Chicago, Thursday, April 10, 2008. American Airlines had canceled nearly 2,500 flights this week as of Thursday due to safety inspections of its MD-80 aircraft following an FAA warning, and a spokeswoman said an unspecified number of additional cancellations were expected through Saturday. (AP Photo/Paul Beaty)

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