The end is in sight for Iran’s mullahs. It may take years, but the demise of their oppressive theocratic regime is inevitable. That prediction reflects one simple notion: They are afraid of Instagram.

We don’t know how and when the rotten Iranian theocracy will implode on its own — a topic on which even experts can endlessly disagree. It is a remarkable comment on the regime’s fragility that Tehran’s rulers feel threatened by dancing on social media.