Mealey's (July 27, 2016, 8:56 AM EDT) -- WASHINGTON, D.C. — The United States on July 25 waived its right to respond to a petition for writ of certiorari filed by four Native Americans seeking review of a 10th Circuit U.S. Court of Appeals decision barring their claims for reparation from the U.S. government for the slaying of unarmed Arapaho and Cheyenne Indians at the 1864 Sand Creek Massacre in Colorado based on the government’s sovereign immunity and lack of a trust relationship (Homer Flute, et al. v. The United States of America, et al., No. 15-1534, U.S. Sup.)....