I haven't seen him in a uniform...although I also wouldn't go out of my way to look at him, either. The flight suit was appropriate for a ride in a jet (The ride itself is another issue, which has been beaten to death) and the jacket he's wearing in this picture of jis visit to Iraq certainly isn't part of a uniform. It seems to me that I've also seen him in an OD green windbreaker with a nametape on it, and that isn't part of any services' uniform.