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Investigation Continues Into Safety Of Shipping Crude Oil By Rail08:08

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Oil containers sit at a train depot on July 26, 2013 outside Williston, North Dakota. Concerns have been raised that the oil extracted from the Bakken Shale in North Dakota is more hazardous than conventional crude oil. (Andrew Burton/Getty Images)closemore
Oil containers sit at a train depot on July 26, 2013 outside Williston, North Dakota. Concerns have been raised that the oil extracted from the Bakken Shale in North Dakota is more hazardous than conventional crude oil. (Andrew Burton/Getty Images)

The National Transportation Safety Board is still investigating the the train derailment and explosion in Casselton, North Dakota. A train carrying crude oil from the Bakken Shale in North Dakota derailed and exploded outside the city limits.

But an investigation into the safety of shipping crude oil from the Bakken Shale has been ongoing since this summer.

A fireball goes up at the site of an oil train derailment Monday, Dec 30, 2013, in Casselton, N.D. . (Bruce Crummy/AP)
A fireball goes up at the site of an oil train derailment Monday, Dec 30, 2013, in Casselton, N.D. . (Bruce Crummy/AP)

The crude oil that is extracted from the Bakken Shale through the process of hydraulic fracturing has raised concerns that the chemicals used in the process make the crude oil explosive and corrodes rail tank cars.

These concerns have led the Federal Railroad Administration and the Pipeline and Hazardous Materials Safety Administration to conduct spot inspections of the oil called the Bakken Blitz.

The investigation may lead to a re-classification of Bakken crude as a more hazardous substance than crude oil that is extracted from other locations.

Angela Greiling Keane, a reporter for Bloomberg News, joins Here & Now’Meghna Chakrabarti to discuss the ongoing investigation.

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