The war in Iraq was a huge mistake. ("Saddam is connected to Al-Queda! Let's blow up Iraq!" "Saddam was in fact not connected to Al-Queda, but we're going to blow up Iraq anyway!")

That having been said, I think that the amount of evidence that Al-Queda does exist outweighs the evidence that it doesn't. Terrorist attacks have increased in frequency greatly. Of course, that could be put down to the terrorist's success in attacking the Twin Towers.

Seeing both sides of the issue seriously damages my ability to argue well.