C'mon. No one knew for certain that those horrible events would happen.
I watched the first tower burning from my living room window...and all the news stations were reporting that a small plane had accidentally hit one of the towers.
In fact, the second tower burst into flames and for five minutes the news station I was watching had no idea why. They finally figured it out when one of their off duty anchors called them to replay the tape in super slow motion. Only then did they realize that another plane had hit.
Point being, the New York news stations had no idea what was happening. I doubt Bush knew anywhere near the extent of the chaos that was going on.
If you think about it rationally, why would he have done nothing? It's just more political bullshit....trying to work another angle in hopes of getting a Democrat into office.