The problem is this: America is damned if we do and damned if we don't!
When Iraq was liberated from a decades old Saddam regime, the Iraqi's rejoiced. Within months, however, their joy became anger, directed at the U.S. military, who were attempting to help in the transitioin to what we hoped would become a democratic state.
The same thing happened, when the Twin Towers were bombed...Americans (mostly dim bulbed democrats, mind you) would have gone to court to force G.W. Bush to retaliate. They didn't need to, because retaliation, such as had happened in 1941, when Pearl Harbor was bombed, was a given.