Support WBURU.S., Canada Announce New Safety Standards For Oil TrainsPlay03:23Download AudioDavid SchaperMay 01, 2015 ShareFirefighters douse blazes after a freight train loaded with oil derailed in Lac-Mégantic in Canada's Quebec province on July 6, 2013, sparking explosions that engulfed about 30 buildings in fire. (AFP/Getty Images)