There is still much to learn about the Iranian-directed plot to blow up the Saudi ambassador in a Washington, D.C., restaurant. But if the Justice Department's information is correct, the conspiracy confirms a lethal fact about Iran's regime: It is becoming more dangerous, not less, as it ages.
Since the 1989 death of Iran's revolutionary leader, Ayatollah Ruhollah Khomeini, Western observers have hunted for signs of the end of the revolution's implacable hostility toward the United States. Signs have been abundant outside the ruling elite: Virtually the entire lay and much of the clerical intellectual class have damned theocracy as illegitimate, and college-educated youth (Iran has the best-educated public of any big Middle Eastern state) overwhelmingly threw themselves into the pro-democracy Green Movement that shook the regime in the summer of 2009.
But at the regime's apex—Supreme Leader Ali Khamenei, his praetorian Revolutionary Guard Corps, and the clergy who've remained committed to theocracy—religious ideology and anti-Americanism have intensified.
The planned assassination in Washington was a bold act: The Islamic Republic's terrorism has struck all over the globe, and repeatedly in Europe, but it has spared the U.S. homeland because even under Khomeini Iran feared outraged American power.