There is going to be a significant problem in confirming any of this to those that don't want to accept Hussein was producing chem weapons. The problem is, many of these facilities are "dual use", which means they can produce perfectly legal products most of the time, and with a slight modification, can be turned into weapons producing facitilites. All the Iraqis have to do is claim it was only being used for legal chemicals and the dupes will believe anything Iraq has to say. (Ironically, these are the same idiots that won't believe ANYTHING US officials have to say.
For proof beyond a doubt, we are going to have to find actual weapons. I hope we do.