Rebels Appear to Hold Off Pro-Gadhafi Forces Near Tripoli

Moammar Gadhafi's assaults on rebels in several cities appear to be failing. US Navy warships are being repositioned in case of humanitarian intervention, but no military action has been authorized by the UN. Gadhafi's son, Saif al-Islam Gahdafi, continues to insist that Libyans are united in support of his father. We get updates from Borzou Daragahi, of the Los Angeles Times, and David Kirkpatrick, of the New York Times, who join from Gadhafi's stronghold, the capital city of Tripoli.