FILE - This Nov. 6, 2013 file photo shows a warning placard on a tank car carrying crude oil near a loading terminal in Trenton, N.D. The Trump administration vastly understated the potential benefits of installing more advanced brakes on trains that haul explosive fuels when it cancelled a requirement for railroads to begin using the equipment. A government analysis used by the administration to justify the cancellation omitted up to $117 million in potential reduced damages from using electronic brakes. Department of Transportation officials acknowledged the error after it was discovered by The Associated Press during a review of federal documents but said it would not have changed their decision. (AP Photo/Matthew Brown, File) 