Grand Ayatollah Ali Khamenei is the Supreme Leader of Iran. Hes also an avid Twitter user. Over the past few months, both Khamenei and Iranian President Hassan Rouhani have warmed up to social media, regularly using Facebook and Twitter to release statements, push agendas, and, in some cases, engage in diplomatic tussles. It’s not that different from how politicians across the globe use social platforms, but the Iranian case is unique considering the leadership’s long-standing public aversion to all things Western — and to social media, in particular.