An investigation of a mine accident in Idaho by the Northwest News Network has prompted a federal agency to change how it handles documents regarding mine safety. Last year the network learned that a federal geologist’s report about unstable rock conditions at the Lucky Friday Mine in Mullan, Idaho, had never been sent to the mining company. In April 2011, a miner died in a tunnel collapse at Lucky Friday. After a congressman took the Mine Safety and Health Administration to task for the oversight, the head of the agency has announced that it will take additional steps to make sure that such studies are delivered to mine operators. Hear the full story from the Northwest News Network.