Check out this YouTube video. Dick Cheney was being interviewed in 1994 and said that the United States should NOT go to Baghdad, because there would be too many casualties.
At that time, he seemed to be thinking clearly.
This article appears in Aug 9-15, 2007.

Whoa, Dick Cheney actually sounds like the voice of reason in this video! I wonder what happened since then to make him do a 180-degree turn? Head injury?
This is the best video ever. 911 changed everything. Like lying to the American people. Who’s the real Tricky Dick?
Here’s the Daily Show take on this.