Airstrikes create new crisis for a quarter million Syrians

More than 270,000 Syrians have fled for their lives in the last few weeks. For them, walking for hours to a desolate corner of the desert and waiting for help that is not arriving is still safer than staying at home. Massive airstrikes by Russian jets and a trail of destruction left by Syrian and Iranian-backed troops have turned the once rebel-held Dara'a into a ghost town. Nick Schifrin reports.