To try and illuminate my point I want to start of with two scenarios:
A person walks up to you and smacks you in the head with a baseball bat, you in turn do likewise, this is the theory of Mutual
Assured Destruction
Well lets say this time someone else nails you in the head ... but you don't know who? The problem with most terrorist acts is people usually don't jump up and say "hey I'm the guy that sucker punched ya!

", they usually try to get away with it, without retaliation, so to get to the point.....
In another thread I brought up the idea that certain countries can have WMD because they know if they misuse them they will be retaliated against with equal force. I pointed out that this dosent work for terrorist or countries that support terrorism, the point of this post is:
1. How can you apply MAD to a terrorist group, that unlike a country that formally declares war, can quitly slip into the background?
2.If MAD dosen't or dose apply, how do you deal with the threat of the terrorist or the country that supplies the terrorist. (ie send troops into said country?)
p.s (For those of you who think my scenerio didn't make since just read The Sum of All Fears by Tom Clancy)