CNN EarlyStart March 20, 2013 10:03:00
>> i have a high probability to believe that chemical weapons were used. we need that final verification. we need to step up in the world community to prevent a humanitarian disaster. >> we're covering this developing story with cnn's global resources. sara sidner is live in jerusalem, ivan watson in amman, jordan. sara, do these development change the president's agenda? we knew discussions of syria were on the agenda but perhaps this has moved it up? >> certainly you're hearing from the white house that this could be a game changer if chemical weapons were, indeed, found to be used in syria....