For years, white ash has been blowing across the desert from the Reid Gardner Power Plant right into the homes on the Moapa Paiute Indian Reservation. The Paiutes claim that this ash—the waste from the power plant—is making them sick. The power plant claims that the Paiutes are wrong. This week, a 3-part investigative series from KSNV, the NBC station in Las Vegas, examines the situation in Moapa from three sides. The Paiutes and the power plant each get their say—as does science.