"Gee,I wonder why they would have done that! I wonder if they also might have had a motive (or a number of motives) to help Sadaam move/hide/destroy his WMDs."
I will tell you why. Let's say we found WMD's. How many did we find? Did we find them all? If not, where are they?
Would you rather have the RATS saying Iraq doesn't have them or would you rather have the RATS say Bush was responsible for releasing WMD's to the terrorists?
Bush had to make a choice. It really wouldn't suprise me if the US told Russia what it was doing so that they could move the WMD out of country before we went in. For Saddam, it didn't matter. He was being removed from power anyway.
It sort of makes sense since the Israelis told us where the WMD are, we saw the trucks leave the country. I refuse to believe that we didn't have a bird watching the convoys as they left Iraq.