1. Knocking off Bush Sr. would be the equivalent of shooting the police chief; knocking off Saddam would be equivalent of knocking off the mafia boss. Do you see the difference? There are certain rights and responsibilities that come with being the most powerful political entity in the world. If we shirk such responsibilities, someone else will take it up from here.
2. That was precisely why I did not say Kuwait being the cause for the last Gulf War; instead, I said the last Gulf War was caused by Saddam's pursuite of nuclear weapons. We had to stop him in that pursuit before a police action would become so prohibitively expensive that he actually successfullly dominates the Persian Gulf.