They've been able to find barrels, bunkers, trailers, radioactive material, weapons/technology dated after the first gulf war...
but not a single tiny evidence of WMD.
You'd think it'd be rather impossible to hide ALL of the WMD evidence from the facilities itself, even if all the stuff has been moved away..
I mean.. nowadays it is nothing new to find finger prints, DNA, dried blood, washed blood, powder marks, toxics... etc. in crime investigations.
Yet they have the modest equiptment to search for marks of WMD, which is allegedly been produced in bigger quantities than a single barrel.
Even the bloody news networks have done better job at finding evidence of this and that...
To complete this scenario, we just need to find the WMD barrels from Iraq with a label "Made in USA, 2003"
