The foundation stones of Iran’s Islamic Republic were shaken again yesterday, showing that the largest antigovernment movement in its 30 years may be one of the biggest stories of next year as well. Now imagine the possibilities if the Obama Administration began to support Iran’s democrats.The perseverance of the so-called Green Movement is something to behold. Millions of Iranians mobilized against the outcome of June’s fraudulent presidential election, and their protests were violently repressed. But the cause has only grown in scope, with the aim of many becoming nothing less than the death of a hated system.Yesterday offered a glimpse into the regime’s crisis of legitimacy. As in the waning days of the Shah in the late 1970s, Iranians merely need an excuse to show what they think of their rulers. The funeral of a leading Shiite cleric who’d inspired and guided the opposition brought out tens to hundreds of thousands to Iran’s religious capital of Qom. Media coverage is severely restricted, but the demonstration’s size was impossible to deny.