Activists and opposition groups have accused Syrian government forces of killing at least 160 defecting soldiers and civilians over the past three days near the city of Idlib. This surge of violence is among the bloodiest the ongoing protests have seen, and comes shortly before international observers are set to arrive to monitor President Bashar al-Assad's implementation of an Arab League peace plan. Michael Wahid Hanna, fellow at The Century Foundation, discusses whether Syria is headed toward a civil war.
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