Laws limiting coal miners' exposure to toxic dust are in danger of being rolled back

Coal miners who are exposed to silica dust are at a higher risk of black lung disease. Despite decades of advocacy, new efforts to regulate the toxic dust are under threat.

<p>Coal miners who are exposed to silica dust are at a higher risk of black lung disease. Despite decades of advocacy, new efforts to regulate the toxic dust are under threat.</p><img src='https://media.npr.org/include/images/tracking/npr-rss-pixel.png?story=nx-s1-6039311' />