(CBS4) DENVER Arapahoe County is threatening to fire a veteran Public Works employee for promoting the fact that he is an English speaking American. "They claim it's offensive and I've been accused of discrimination and harassment, believe it or not, because of this," said Mike Gray, a heavy equipment operator with the Arapahoe County Road and Bridge Department for 16 years. The problems began last spring. Gray, 50, owns a lawn service business on the side. He was routinely driving to work in his pickup truck towing a trailer that he uses to carry lawn mowing equipment for his business....