The Department of Defense is a valid source.
If you don't believe them, then that is your problem, not mine. But that is your right.
As for me, I am tired of the Saddam had no WMD lie. Now you can debate the nature and potential threat of what he had all you want to, but you can not say he did not have them.
He was supposed to have destroyed these 500 WMD shells. He told the UN inspectors they were all destroyed, yet they were not.
Would you want 500 Saran shells exploded in your city? No. So don’t tell me they were not a lethal threat to whoever Saddam choose to use them against.