Iran's Security Chief Replaced After 10 Years: Meet the New Official.

Iran's security chief, Ali Shamkhani, has left his post after almost a decade, and has been replaced by Ali Akbar Ahmadian, a senior commander in the Islamic Revolutionary Guard Corps (IRGC). Shamkhani had been instrumental in shaping Iran's security policies in the past decade, including successfully completing a detente with Saudi Arabia. No official reason has been given for his departure, but it may indicate the country is heading in an ever-more conservative direction as Shamkhani was regarded as relatively pragmatic.