Meanwhile in the world of gray...yeah that world where you must choose the lesser of two evils, Shiites are calling for the US to intervene because well, they are losing the battle on the battlefield. These are the same people that were fighting the US while we were there. We don't want to strengthen the hand of the Shiites and Iran if we can help it. remember what Petreaus said, we don't want to be see as the Shiite air force. In Syria, if we bomb IS, we strengthen the hand of the government/Hesbollah/Iran. Do you see the conundrum? We will probably bomb them anyway, but again we don't want to be seen as taking aides. Remember, the Sunnis in Syrian were oppressed in Syria under the Alawites (Shiites), where as in Iraq the reverse was true until we intervened.