Speaking of “near certainty”

" America does not take strikes to punish individuals; we act against terrorists who pose a continuing and imminent threat to the American people, and when there are no other governments capable of effectively addressing the threat. And before any strike is taken, there must be near-certainty that no civilians will be killed or injured — the highest standard we can set."     [Barack Obama - National Defense University, May 23, 2013]

“You ask, What is our policy? I will say; ‘It is to wage war, by sea, land and air, with all our might and with all the strength that God can give us: to wage war against a monstrous tyranny, never surpassed in the dark lamentable catalogue of human crime. That is our policy.’ You ask, What is our aim? I can answer with one word: Victory—victory at all costs, victory in spite of all terror, victory however long and hard the road may be; for without victory there is no survival.”  [Winston Churchill]