What's behind the sudden drop in US gas prices?
Clip: 10/18/2014 | 3m 40s
According to AAA, the average price of a gallon of regular gas in the U.S. dropped from $3.52 in late July to $3.12 today. Isaac Arnsdorf, an energy and commodities reporter with Bloomberg News, joins Hari Sreenivasan to explain the factors contributing to the drop.
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