Tunisia Opposition Aims For "Alternative Government"
Description:Tunisians are angry after opposition politician Mohamed Brahmi was shot dead. Brahmi belonged to the Popular Front, whose then-leader Chokri Belaid was killed in a similar way in February. That led to the worst violence in Tunisia since President Ben Ali's fall in 2011. Protesters blame the main Islamist Ennahda party for the murder, the same group blamed for the death of Belaid.(1:17)