Haven't seen a link on this (haven't had much of a chance to look, yet, though), but it appears that Ted Kennedy was among those Senators and Congressmen (mostly Democrats) who were contacted by the Frederick family with information on what had happened in Abu Ghraib. So, Senator, maybe Don Rumsfeld isn't the only one who has a bit of responsibility to share here.
http://www.israelnationalnews.com/print.php3?what=article&id=3657