This Oct. 11, 2013 file photo shows cleanup at the site of a Tesoro Corp. pipeline break that spilled more than 20,000 barrels of oil into a Tioga, N.D., wheat field. The massive oil spill still isn't fully cleaned up three years and three months after it happened.
Two companies proposing to build what would be the nation's largest oil-by-rail marine terminal along the Columbia River in Washington see it as an opportunity to link domestic crude oil from the Midwest to a West Coast port. Critics, however, see an environmental and safety catastrophe waiting to happen, especially after a train carrying volatile Bakken crude oil derailed and burned on June 3 in Mosier, Oregon, just 70 miles upriver from the project site in Vancouver, Washington.