Well, since the UN had documents that proved the PRODUCTION of these weapons when they were kicked out in 1998, how do you think they were disposed of. Do you really think ANY government would just flush them down the toilet with no record? Especially a government who documented every person they murdered over the years (including pictures)?
Get real. They were produced, they were either disposed of or hidden. We just have to find out which one. If it turns out they were disposed of, Saddam was intentionally trying to get himself and his Baath party killed. They sure advanced a huge fraud, even to the point of providing their troops with chemical suits and injections.
Some people have convenient memory loss.
"These were the allegations as I distinctly recall them: 15,000 to 30,000 chemical munitions; thousands of tons of weaponized chemical arms; hundreds of gallons of biological agents; a reconstituted nuclear program with procurement of uranium & missile cores; a fleet of remote-guided WMD drones; dozens of mobile biochem laboratories; dozens of Scud missile delivery systems."