Associated Press: Millions of gallons of crude oil from the nation's heartland are crossing Maine in railroad tank cars bound for a Canadian oil refinery, raising concern among environmentalists and state officials about the threat of an accident and spill.
The oil is primarily coming from the Bakken shale-oil field in North Dakota, with lesser amounts from neighboring Canada, where oil production has boomed in recent years. Trains carried nearly 5.3 million barrels of the light crude more than 220 million gallons...