The use of chemical weapons however changes the whole game. there are international laws and treaty's banning the use of chemical weapons because of the horrors they inflicted in world war one. i don't know how much Russia is willing to overlook the Assad regimes crimes in order to make a profit selling weapons to them, But we as a nation cannot allow Syria to get away with using chemical weapons on its people.
if this civil war has devolved to such a state that one side used chemical weapons to gain victory, then this war must be stopped. i am not arguing for supporting the rebels, only for ending the conflict and force both sides to the negotiating table.