Danny,
You might want to add that it was Mr. Donald "I didn't fight" Dumsfeld that "sealed the deal" on the sale of those chemical weapons to Iraq (under President Reagan & Vice President Bush Sr.).
I can only speculate, but I imagine that Mr. Dumsfeld must have been intelligent enought to ponder the *tiny* possiblility that Saddam might actually use them. In American law similiar acts are considered "aiding, abetting, or conspiring to the crime", hopefully international law will draw the same conclusion.