这个来自于克劳塞维茨的战争论
War is the realm of uncertainty; three quarters of the factors on which
action in war is based are wrapped in a fog of greater or lesser uncertainty
. A sensitive and discriminating judgment is called for; a skilled
intelligence to scent out the truth.
-Carl von Clausewitz
也就是说你无论FA还是TA,都是取得intelligence的方法,但是这层迷雾是不可能完全
驱散的,所以所有的操作,都要应对uncertainty。