Bush administration considers delaying safety rule regulating mine air quality

When I first went down in a mine (my uncle was a Union Carbide mine superintendant most of his life), underground mining was done using trains.  Over time, mine operators have taken to using heavy-duty, large trucks instead of laying track -- which increases air quality problems in mines.  The Clinton administration issued an MSHA rule to control  exposure of miners to diesel fumes and particulates in underground mines, which would become effective this year.  The Bush administration is now proposing to move back the effective date of that rule another five years to address technical feasibility issues raised by the mining industry.  The battle is brewing over this long-term mine safety issue.  Link: Fuming Over Mining Rule.