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Yale e360
Nov 11, 2014, 8:32 am34 ptsBlack lung — a debilitating disease caused by inhaling coal dust — was supposed to be wiped out by a landmark 1969 U.S. mine safety law. But a recent study shows that the worst form of the disease now affects a larger share of Appalachian coal miners than at any time since the early 1970s. BY KEN WARD JR.
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