The same can be said for ammonia and chlorine bleach. By themselves they are not dangerous but if you mix them together they can be deadly poisonous and explosive.
Then we must assume, that Wal-Mart has WMD. I've been waiting months for this to development. I have a conspiracy theory that Wal-Mart helped Saddam acquire the Chlorine bleach and ammonia (of course, Taiwanese made...not American-made), and brought it secretly into Iraq.
Not quite so.
Both chlorine and ammonia are deadly toxins in their own right and are considered TIC's (Toxic Industrial Chemicals) that, unlike Sarin, have legitimate industrial uses. Other TICs that are cousins of Lewisite and Mustard Gas have been found in Iraq in non industrial settings.