lot of the white children got to attend schools with playgrounds. our children had to attend schools with graveyards. it should be a wake-up call now. reporter: this is the veterans cemetery on the sioux reservation. this is where those children will finally be laid to rest on their own land. as for the investigation, tribal leaders here and many tribal leaders across the country support it, but they worry that those records from those boarding schools may have been lost long ago or maybe even intentionally destroyed. and they worry also that this investigation will only attempt to locate the possible sites of mass graves for children but not actually recover them. bringing the children home is what they really want. martin savidge, cnn, on the rosebud six reservation, south dakota. thanks for spending part of your day with me. i m michael holmes. i ll have more cnn newsroom in a moment. l of this.