Mission Accomplished?

I'm not going to get too elaborate on this, but I have to put it out there. Why are we in this war again? Can anyone answer me?

Bush's current justification/mission for this war is to "hunt down the terrorists." This mission has changed so many times it's hard to keep track -- from finding WMD's, to removing Saddam Hussein, to holding elections, to rebuilding Iraq, to training Iraqis to defend their country, and now to "hunting down terrorists." Bush and his administration are masters of language manipulation. Just wanted to restate the painfully obvious: Al Qaeda struck the US on Sept. 11. Al Qaeda terrorists were not from Iraq. Of all the hijackers, 15 of the 19 were Saudi. Two of the hijackers were from the United Arab Emirates and one each was from Lebanon and Egypt. Bush continues to attempt to link the Iraq War to September 11th. He mentioned Sept. 11th in his most recent speech 5 times. He mentioned "exit strategy" zero times.

So, uh....why are we there again?