Massive protests are planned in Egypt, a day after more than 580 Egyptians died in fierce fighting. Witnesses say many of those killed today were shot by Egyptian security forces firing live ammunition at protest camps. At the same time Islamist demonstrators attacked churches and called for a Muslim state in Egypt. Anderson takes a closer look at today's violence and what we can expect tomorrow. He spoke with CNN's Arwa Damon in Cairo, Egyptian journalist Mona Eltahawy, Arab affairs analyst Robin Wright, and Daily Beast correspondent Peter Beinart.