In this Sunday, Nov. 4, 2012 photo, a United Airlines 787 Dreamliner arrives at O'Hare international Airport in Chicago, from Houston. The Regional Transportation Authority says it will file a lawsuit Monday, Jan. 14, 2013, alleging that United Airlines subsidy United Aviation Fuels is falsely claiming to buy jet fuel out of a small office in a rural Illinois community to avoid paying tens of millions of dollars in taxes in Chicago, where the purchases are allegedly being made. (AP Photo/Nam Y. Huh)
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