How do you know we sold chemcial weapons to Saddam's Regime? Many countries sold Saddam many things but did the US sold the actual chemical weaponary?
Many chemicals are used in agriculture to help to get rid of pest or used in cleaning products. It's called dual use items. Remember Clinton going after dual use items during the 90's?
I think the US sold Iraq anthrax samples because lifestock needs anthrax vaccinations. We also sold Iraq Botulin toxin because it is used in medience.
http://en.wikipedia.org/wiki/Botulin_toxin
Proof of burden is on Saddam....not on other countries.
http://www.crimesofwar.org/thebook/poisonous-weapons.html
http://cns.miis.edu/research/wmdme/flow/iraq/seed.htm
Common household cleaning products can be lethal if you have large batches of it.
http://community.discovery.com/eve/ubb.x/a/tpc/f/9701967776/m/594105473
Santorum and Hoekstra on Hannity & Corpse right now!