EcoWatch: The U.S. Department of Transportation (DOT) announced details Wednesday of a proposal to make crude oil transportation safer, in a bid to prevent more derailments and the threats that accompany them. The proposal would phase out older DOT 111 tank cars that ship packing group I flammable liquids, a category that includes most Bakken crude oil. Retrofitting the tank cars to comply with new standards is the only way that wouldnt be phased out. Other elements of the proposal include braking controls,...