Why are we mad at the Taliban?

They did nothing to us. 19 Saudi Arabians flew the jets into the Twin Towers and the Pentagon. When are we invading Saudi Arabia? The Taliban did nothing to us. A bunch of Arabians called Al Queda who were in Afghanistan caused the trouble. Are we mad because the Taliban couldn't control everything in Afghanistan? Well, we are the most powerful country that has ever lived, and WE have absolutely no control over Afghanistan. Why are we mad that the Taliban can't control what goes on there? We invaded Iraq for no reason, and lost thousands of men, and spent ourselves into a Depression. Now we are trying to turn Afghanistan into Switzerland or Holland. I guess the Saudi Arabians who are responsible for all this must have just about died laughing at us by now.