White construction worker sues Colville tribe 5/18/2006, 12:00 a.m. PT The Associated Press SPOKANE, Wash. (AP) — A white construction worker is suing two Colville tribal corporations, contending that racial slurs by American Indian co-workers caused him to quit his job.Tribal attorneys say that Christopher Wright's employer, as a tribal entity, is entitled to sovereign immunity and cannot be sued in state court.Arguments in the case were heard Tuesday before the state Supreme Court in Olympia. It is the first time in more than 25 years that the high court has heard a tribal sovereign immunity case. A...