A bill that appeared to be on the fast track in the Minnesota Legislature hit a stumbling block yesterday (Weds) in a House Committee. The bill would give voters the option of deciding if they want a portion of the state's sales tax to go towards conservation and envirnomental programs. But one lawmaker says voters should also be allowed to decide if they want another portion of the state's sales tax to go towards education. The move prompted several supporters to say some House DFLers are playing political games in an effort to kill the bill. Minnesota Public Radio's Tom Scheck reports....