"Since late 2012, as hydraulic fracturing and tar sands drilling created a glut of oil, the industry has scrambled to transport the fossil fuel from drill sites to the east and west coasts, where it can potentially be shipped overseas to more lucrative markets.
The increase in oil rail traffic, however, has not been matched with increased regulatory scrutiny. Oil trains are not subject to the same strict routing requirements placed on other hazardous materials; trains carrying explosive crude are permitted to pass directly through cities—with tragic results. A train carrying Bakken crude oil derailed in the Quebec town of Lac-MÉgantic on July 6, 2013, killing 47 people in the small community.
In the absence of more protective regulations, communities across the country are beginning to take matters in their own hands."
More:
http://earthjustice.org/features/map-crude-by-rail
