The U.S. and other countries have expelled Syrian diplomats following reports that approximately 100 people — including many children — were killed in the town of Houla and that the Syrian government was also involved in the killings. Another 72 people were also reported killed on Tuesday. After more than a year of unrest, in which perhaps 10,000 or so have died, will this be the action that leads the international community to mobilize against Syria? Short of a cease-fire, should the U.N. look to use force in Syria or should it find other less direct ways to support opposition to the Syrian regime?