We can learn things from cavemen. We can learn good things and some bad things. If a caveman is attacked, the first instinct may be to go out and attack the thing that attacked him/her. After 9/11, our government chose to attack Iraq and Afghanistan. After we were attacked, it seems like it would have made more sense to protect ourselves and our interests. I think this would mean improving our security within and along our borders. Maybe mind our own business a little more. So, in my mind, we did things in reverse. This time, we should not have acted like cavemen.