Comment: No nuclear weapons and most modern heavy weapons including the outrageous 'cluster bombs' do not discriminate between combatants and civilians. Almost no weapons can be considered to come even remotely within the broadest criteria of the just war theory any longer.
We have evolved sufficiently now to be render us just stupid enough to rationalize and moralize our way to our own to collective self-destruction. 
Let's hear the Nuns' stories, learn a lesson maybe and quit the kneejerk jingoism and shallow moralizing.