No, the argument wasn't explicit. I still think it was there.
What does CCR have to do with anything? That was the audience, it's irrelevant. That's not what that video was about.
Maybe this will sit better with you, unless you think Congress has no fundamental understanding of Constitutional law:
http://www.youtube.com/watch?v=QcjsYutrxXc
The use of chemical weapons is a war crime regardless of the target, intended or not. Most of the victims were insurgents. They didn't hide that fact. They didn't have to.