4me2no,
Thanks for a very well-written message. I also agree that although we are shouting "revenge", we should exact justice only after identifying the real criminals behind this heinous crime. Even if Afghanistan is found to have been in cooperation with the criminals, I do not agree with bombing Kabul, as some posters have suggested.
We are Americans, we need to remember the people of Afghanistan have also suffered under the Taliban regime. Our indiscriminate bombing of Kabul or nuking Afghanistan will only add to the suffering there, and not necessarily harm the real criminals. All of us will have bloood on our hands, making us no better than the criminals themselves.
As you pointed out, Timothy McVeigh was tried and executed, and we are not like some other governments that will go bulldoze the McVeigh family home or arrest McVeigh relatives just because they are from the same family. Hatred and revenge will only breed more hatred and revenge.