Exactly
We were not attacked because of an abundance of anger, but because of a deficiency of respect on the part of the entire Arab-Islamic world. Unfortunately, you do not get from disrespect to respect without an element of fear. The region's biggest and baddest must be annihilated, summarily defeated, yes humiliated, the same conditions which eliminated Japanese terror in WWII.
To save the world from what Saddam might do?
Think about it, all he has to do is provide WMD to those who would willingly bring them to our shores, he doesn't have to DO anything, and he knows it. Why can't the left understand this?