Assassination Prompts Tunisian Opposition to Unite, Demand Elections

A week after the assassination of Chokri Belaid, Tunisian opposition parties are uniting to demand that the government be dissolved and fresh elections held. Belaid was a prominent critic of the ruling Ennahda party and many opposition groups blame its supporters for the killing. As Henry Ridgwell reports from Tunis, the incident has shaken the fledgling democracy.