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Police In Colorado Crack Down On Diesel Truck Owners For 'Rolling Coal'

Diesel trucks used to be known for belching black, polluting exhaust. Over the years, manufacturers have worked hard to shed that image, building cleaner engines. But there's a small group of diesel truck owners who are going in the opposite direction.

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Stephanie Paige Ogburn has been reporting from Colorado for more than five years, primarily from the Western Slope.