>> coming up in the -- whew, in "the skinny." we'll share some good beyonce news this morning. >> i don't think she's really worried. >> she's doing her thing. but first, some very telling words from those who left syria's regime. one defector is saying, the revolution will be victorious. >> another is confirming the worst fears about the regime's potential use of deadly chemical weapons. his words come amid some big rebel advances. >> reporter: the rebels have taken the fight to syria's biggest cities, battling assad's strong holds, his palace in damascus, while fighters have overrun one of the largest military bases outside the city of aleppo. american officials fear the likelihood of assad using chemical weapons is rising. they say they have proof they've been prepared. we went to meet a man who shares