Sadly, a good part of the sheeple would think the pictures doctored or the photograph staged. In fact, I believe the US could present very specific evidence and some people would still be skeptical unless inspectors were there and saw such evidence with their own eyes. Of course, any such evidence would be long dispersed by the time inspectors arrived.
The best that President Bush can do is to release *some* information that they have, information that has the best chance of connecting with Americans. I agree it should not be necessary.