, I do know that neither the US nor NATO has chemical, biological or bacteriological weapons in their ordnance inventories.

That leaves open the question whether they might or might not have them, but not in their ordnance inventories, which neither you nor I know. After all, Saddam Hussein hasn't got them in his ordnance inventories either, but it appears that isn't seen as conclusive proof he hasn't got them.

Shells containing depleted uranium was of course routinely contained in shells used extensively last time, and no doubt ths time. I'm not sure if that counts as chemical or whatever, - either way it's deadly stuff, with horrible effects, especially on unborn children. I imagine if Saddam used it it'd be another war crime to charge him with, and quite right too.