Terrorism is an idea. The more you try to silence the idea, the more support it will get. It's an unkillable, out of control monster that plagues the world. It's sad that the very idea has to exist, but it's just fact that it does and we have to live with what has happened. It's because of past events that today it happenes The only thing that will ever bring it's end would be world peace. And we'll just never achieve that in our life times, not that we can't further our goal towards it.