There's word today the federal transporation bill contains money to help build LRT along the Hiawatha corridor in Minneapolis. The prospect of a shiney new light rail line has stolen the transit spotlight the last few months. But the man credited with playing a key role in securing the LRT dollars told an audience at Minneapolis transit forum today buses must play a bigger role in Twin Cities transit. Minnesota Public Radio's Dan Olson reports. Dozens of North American cities have a head start over Minneapolis on light rail transit projects. But Congressman Martin Sabo says the effort to win federal funds for the Hiawatha avenue line is a turning point. He says it shows interest groups are once again thinking about the future. But Sabo cautions while Light rail is glamorous says bus