Hezbollah's Nasrallah condemns video at mass rally

Tens of thousands of people have marched through the Lebanese capital in protest at a video which mocks the Prophet Muhammad. Hezbollah leader Hassan Nasrallah made a rare public appearance at the rally. He warned the United States that it faces more anger across the Muslim world if it does not remove the video. Al Jazeera's Rula Amin has more from Beirut.