Late last year critics told us the project would double the toxic air emissions in the area, already home to a high number of petro chemical facilities. tonight in our special series "the vanished," the truth, the tragic hidden truth of some native american boarding schools right here in the u.s. antonia hilton has the story. >> reporter: when yvonne walker keshek stepped food on what was once childhood of jesus boarding school in harbor springs painful memories come flooding black >> everything that was native american, they tried to destroy. >> reporter: yvonne was one of thousands of nati...