Sick mine workers allege insurer delaying medical payments

              FILE - In this April 27, 2011, file photo, the entrance to downtown Libby, Mont., is seen. Exposure to asbestos dust from a vermiculite mine on Libby's outskirts has sickened and killed mine workers and others in the mountain town. (AP Photo/Matthew Brown, File)
              FILE - This Feb. 17, 2010, aerial file photo, shows the town of Libby, Mont. Mine workers in Libby who were sickened and killed by toxic asbestos exposure and their heirs are suing an insurance company for allegedly stalling legal settlements and medical payments. (AP Photo/Rick Bowmer, File)