Ok, I give up, here are the cites (pun intended). The U.S. Military 'lessons learned' web site I refered too is http://redwood.do.langley.af.mil/ The Nuclear Regulatory Commission reports I refered too is http://www.nrc.gov/NRC/GENACT/GC/gcabout.html Information about subscribing to the mailing list is at the bottom of the page. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation