I can't imagine that the military buildup would be continuing apace without such certainty; and it's easy for me to imagine that a Saddam without hope would destroy himself, his country, and as many other people as he could touch with his suicidal swan-song.
Allowing for the positioning of the military while Saddam wonders if he can yet again delay his inevitable downfall, the public uncertainty serves the purposes of the good guys. I think that when all is ready, the naked truth will be made known to a doubting Western public.
That is my wish too, but in the back of my mind is the dreadful warning that we must be careful what we hope for.