I think that's a poor analogy for a variety of reasons, not the least of which is that that the MAD doctrine is about mutual assured destruction. That is, it's a suicide tactic designed to make the idea of a nuclear exchange unthinkable, not a great strategy for fighting a war you want to win.
I’ve got a LOT of liberal relatives who have grown increasingly uncomfortable with the attacks on Sarah Palin’s children. The fact that conservatives don’t target the preteen children of democrats hasn’t been lost on them and frankly I’d like to keep that impression.