… who was preying on Native American boys for two decades … agency hospital on the Canadian border and quit a … convicted of sexually abusing Native American boys under his care … promoted pedophile who preyed on Native American boys, Report: Government protected …… who was preying on Native American boys for two decades … agency hospital on the Canadian border and quit a … convicted of sexually abusing Native American boys under his care … promoted pedophile who preyed on Native American boys, Report: Government protected …