reenergized after the appearance of gadhafi's son, asif, who was reported captured, but is roaming the streets. >> steve: despite these new developments, senator john mccain told us in the past hour he's confident gadhafi, gone. >> gadhafi is not going to go down easy. a lot of his people are mercenaries from africa who have nothing to lose and a lot of our air power advantage has been negated. >> juliet: they're trying to flee to tunisia for supplies. dominic is live with the latest. >> we've seen a stream of ambulances come across from libya into tunisia, fresh wounded. rebels that had been injured during a missile attack, they say.