I may be almost two decades late with this - I've never seen it before and I've no idea how I came to arrive at this page. (Maybe a link from one of the two lists I'm posting this to? :-( ). http://onlineethics.org/essays/shuttle/#abstr A detailed paper by a disgruntled ex Morton Thiokol employee detailing the history as he sees it that lead up to MT making (he says) dubious decisions that lead to the Challenger disaster. Very old hat now but makes interesting reading and plenty of lessons to apply to other areas. RM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist