I'm no longer so sure of that.
Here we have this terrible attack on NYC and the Pentagon, and already people are forgetting (especially politicans). We have yet to take many basic security precautions that could be easily taken, despite incessant demands from "We, the people". With an attention span like that and such lack of resolve after that shock, what gives you such hope the next attack will be paid attention to?
We have short attention spans. We are bombing now so to most people, that is sufficient. Each time we are attacked, we will pay attention to the war for a time and take some action at home. Then we will forget again or devote our attention to something else until the next time.