Bush Approves Use of Tear Gas in Battlefield

And they're claiming that this is in accordance with the Chemical Weapons Convention. I guess they're ignoring the bit which explicitly outlaws the use of riot control agents on the battlefield as a "method of warfare". But then, signing up to a treaty and then flat-out lying about what it says seems to be a standard American diplomatic tactic now.

The irony of using chemical weapons to fight a war against chemical weapons is probably completely lost on them.