An all-Iranian panel speak about a century-long unresolved ideological conflict which, with the death of Mahsa Amini whilst in the custody of Iran's morality police, has re-erupted in a seismic women-led protest against the regime. Why has this death triggered such a strong and co-ordinated response, where will it lead, and will Iran find a way to reconcile the religious conservatism of its leadership with the strong yearning of its young population for modernisation?