Iran: Rouhani Vows to Avenge Killing of Nuclear Scientist Fakhrizadeh

Iran's President Rouhani has reacted defiantly to the killing of a leading nuclear scientist. Hassan Rouhani blamed Israel for the assassination of Mohsen Fakhrizadeh - the man suspected of masterminding a secret nuclear weapons program. Rouhani said his death showed what he called the depth of the enemy's despair and said it would not slow down Iran's nuclear ambitions. Iran state media describes Fakhrizadeh as an eminent nuclear scientist. But he was also a member of the powerful Revolutionary Guard. Whose job is to guard the country's cleric-dominated system.