In this April 29, 2011, file photo, D.C. Orr, a city councilman in Libby, Mont., walks through a storage area, where bark and wood chips contaminated with undetermined levels of lethal asbestos were stored. More than 15,000 tons of the material have been sold, used in and trucked out of the remote Montana town of 3,000 people over the last decade, with unknown risks to public health. A cleanup proposal for a Montana town where thousands have been sickened by asbestos exposure calls for leaving some of the dangerous material in place rather than removing it. (AP Photo/Matthew Brown, File)