Every decade the Islamist regime has been in power, an uprising has cost it an element of its legitimacy. A protester at the University of Tehran, Dec. 30. The slogans must have unsettled the mullahs: “Death to Khamenei!” “Death to Rouhani!” “We will die to get our Iran back!” Imperialism has not revived the regime’s legitimacy, as the protesting Persians pointedly reject expending their meager resources on Arab wars: “Death to Hezbollah!” “No to Gaza, not Lebanon! Our life only for Iran!” However the events on the streets unfold, their most immediate casualty will be the presidency of Hassan Rouhani...