Iran is experiencing the largest wave of anti-government protests in decades—possibly since 1979. The regime is responding with brutal force, while the people are answering with open defiance. What is really happening on the streets of Tehran? How firm is the grip of the ayatollahs, and does the crisis risk regional escalation? Our guest is Zineb Riboua, Moroccan political scientist and Middle East expert, who argues that the regime is in serious trouble.