Excuse me, Mr. Vancil
My overview of techniques for estimating the risk of small to medium impact may be found at:
http://abob.libs.uga.edu/bobk/ccc/cc030703.html
If you have any problem with its conclusions, then please forward your comments to Dr. Peiser.
In the meantime, as you know by now, Columbia and/or its crew could have been saved, had the extent of the tps damage been known. In light of this, I do believe I am owed an apology by you personally, for the earlier load of shit you threw on me.
sincerely,
ep