Hazmat road accidents have more than doubled in the past decade
CBS News investigates problems with the transportation of hazardous materials across the United States, where federal data show there are about 500 incidents each day involving a train, plane or truck carrying hazmat.
CBS News investigates problems with the transportation of hazardous materials across the United States, where federal data show there are about 500 incidents each day involving a train, plane or truck carrying hazmat.
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