Humanitarian response and response to internal crimes are handled by the U.N. for a reason - so we don't have to do it on our own. Let's assume for the moment a very real possibility - given Obama's stupid "red line" comment rebels backed by al Qaeda stage or create a chemical weapons attack. They do this knowing it is an announced cause for action. If we took the cowboy approach and started bringing in our troops on our own without knowing for sure what happened, that means the U.S. embroiled in another long, dumb war, which is exactly what al Qaeda has stated they want. Not to mention we may trigger a proxy war with Russia. So the U.N. is there now. Let's see what happened before shooting our guns in every direction.