FILE - In this Tuesday, Jan. 26, 2010 photo, an unidentified passenger uses a Delta Airlines self check-in kiosk at Hartsfield Jackson International Airport  in Atlanta. Some passengers buying tickets on Delta's website this spring saw different prices just because they were logged into their frequent flier accounts. The Atlanta-based airline on Wednesday, May 16, 2012 said it has fixed the computer glitch but is unsure how many travelers were been impacted. The problem existed for less than three weeks and sometimes provided frequent fliers with high fares; sometimes lower fares, according to spokesman Paul Skrbec. (AP Photo/John Amis)
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