Major pipeline bursts into flames

Nov. 29 - The biggest oil pipeline supplying America with Canadian crude oil exploded, crippling supplies just as temperatures drop and demand for heating oil increases. The Enbridge Pipeline system usually supplies the U.S. market with more than 1 million barrels of oil per day. The U.S. Department of Homeland Security said there were no known links to terrorism related to the deadly blast in Minnesota. The cause of the blast was not immediately known.

Conway G. Gittens reports from New York.
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