U.S. Senate Democrats on Wednesday urged the White House to implement national oil train safety standards and to do more to control the volatility of crude moving in those shipments. The Obama administration is expected to demand that future oil train tankers are toughened with added steel and have advanced braking systems to prevent derailments from becoming a disaster like the 2013 Lac-Megantic tragedy, when a runaway oil train killed 47 people in the Canadian town. But the proposal is expected to do nothing to control the dangers of that cargo even though federal officials have warned that crude oil from North Dakota’s Bakken energy patch could be unduly volatile and explosion-prone. Senator Maria Cantwell introduced legislation that would force regulators to control oil train volatility. “This bill is showing our impatience with the fact that (the White House plan) doesn’t include volatility and […]