Horse manure.
Please take a look at this timeline. The discerning reader may note that considerable activity went on in Iraq after 1991, including concealment, lies, obstruction, the continued discovery and destruction of hidden weapons, and all the rest.
I dare say that even the most rabid proponents of the theory that there were no active WMD in Iraq when we attacked will not submit that Saddam has been "clean" since 1991.
Blix is as full of shit as a Christmas goose.