As Mine Protections Fail, Black Lung Cases Surge NPR & CPI 0 Randall Gross US NewsJuly 2012Monday, July 9, 2012 at 5:13 am PDT • Views: 2,169 npr.org Advanced Stage Black Lung Black Lung Cases Chest X-Ray Coal Miners Pneumoconiosis X-ray Progressive Massive Fibrosis Generation Coal Mining Energy