FILE - This Nov. 6, 2013, file photo, shows a BNSF Railway train hauling crude oil near Wolf Point, Mont. BNSF Railway Co. said Thursday, Feb. 20, 2014, it intends to buy a fleet of 5,000 strengthened tank cars to haul oil and ethanol in a move that would set a higher safety standard for a fleet that's seen multiple major accidents.(AP Photo/Matthew Brown, File)
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