Chemicals are NOT weapons of mass destruction.
Nuclear weapons are, and perhaps biological weapons might be, but chemicals?
No way.
Now I know well that my opinion here is not the mainstream opinion, but seriously...
Chemical weapons are hardly WMDS.
No more so then any large conventional bomb is a WMD.
Chlorine gas, mustard gas, chemical agents, are you saying these are not weapons of mass destruction? Chemicals can be used for many purposes, including weapons.