Something to consider...
Right now the whole world [with the exception of Iraq] has expressed sympathy and offered whatever aid they can muster. Not only the U.S. but every country out there can be a resource to beat the bushes and bring the vermin who did this to Justice.
If we start killing civilians without d@mned good cause then those resources will evaporate. It is more important to me to get the filth who are actually responsible than it is to vent my spleen by spilling blood.
If we behave justly then there will be no place to hide, no solace or defense for those who do evil.
THose who use arms well cultivate the Way and keep the rules. Thus they can govern in such a way as to prevail over the corrupt.
- Sun Tzu, The Art of War