FILE - This Nov. 6, 2013, file photo, shows a BNSF Railway train hauling crude oil near Wolf Point, Mont. Railroads that haul volatile crude shipments have reached an agreement with U.S.

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FILE - This Nov. 6, 2013, file photo, shows a BNSF Railway train hauling crude oil near Wolf Point, Mont. Railroads that haul volatile crude shipments have reached an agreement with U.S. transportation officials to adopt wide-ranging voluntary safety measures after a string of explosive and deadly accidents. (AP Photo/Matthew Brown, File)

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Associated Press
Fri, Feb 21, 2014 8:51 PM EST