It's going to be a decisive week for Syria. The Syrian National Council (SNC), the de facto umbrella organization representing the country's political opposition, is meeting in Tunis to try and get its house in order and formulate a plan to bring down the house of Assad. At the same time, the Arab League has given President Bashar al-Assad until Wednesday to stop dithering on its six-week-old proposal to end the violence and allow monitors into the country or -- in a pronounced escalation -- perhaps kick the matter up to the United Nations. Even Russia, which has protected Damascus...