Retired federal judge Miles Lord is asking Governor Pawlenty and the legislature to put a moratorium on new taconite projects on the Iron Range, until questions are answered about health concerns. Lord issued the landmark ruling in 1974, that forced Reserve Mining Company to stop dumping its waste rock into Lake Superior. Scientists had found asbestos-like fibers in the rock. Now Lord says the state hasn't done enough to find out whether those fibers are making miners sick. Minnesota Public Radio's Stephanie Hemphill reports. {