Sanctions, War, Isolation: Why Hasn't Iran's Hard-Line Government Collapsed?

Iran's Islamic republic has survived the death of Supreme Leader Ali Khamenei in February, the loss of senior military commanders, war, economic crisis, and widespread public discontent. So why is the system still standing? Vahid Pourostad of RFE/RL Radio Farda's Iran Tomorrow program explains that its survival rests less on popular support than on a still-functioning security apparatus, entrenched networks of power, and a fractured opposition.