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 ::Sean, thanks. I can't find the policy. I think I confused it with  this WP essay opining, 
 ""Information that is demonstrably dangerous to others has, in the past, been removed from edit histories without objection."" Neither a policy or a guideline but one I agree with. I have corrected my post above to reflect that.  
 ::We have to use our judgement. Not everything is written down as policy. Could you please respond to ""His document gives instructions on how to make bombs for the purpose of killing lots of people. What does someone have to to do to convince you? Blow up a bomb built with these instructions in downtown Oslo? Done."" That is still a showstopper for me.    Javaweb"