Sooner or later (probably sooner) something will have to be done about Iran, or we’ll be faced with one of the most fanatical Islamic states on Earth, possessed of nuclear weapons. Charles Krauthammer looks at the situation—and the deadly stakes: What about Iran?

Syria is weak and deterred by Israel. North Korea, having gone nuclear, is untouchable. That leaves Iran. What to do? There are only two things that will stop the Iranian nuclear program: revolution from below or an attack on its nuclear facilities.

The country should be ripe for revolution. The regime is detested. But the mullahs are very good at police-state tactics. The long-awaited revolution is not happening.

Which makes the question of pre-emptive attack all the more urgent. Iran will go nuclear during the next presidential term. Some Americans wishfully think that the Israelis will do the dirty work for us, as in 1981 when they destroyed Saddam’s nuclear reactor. But for Israel, attacking Iran is a far more difficult proposition. It is farther away. Moreover, detection and antiaircraft technology are far more advanced than 20 years ago.

There may be no deus ex machina. If nothing is done, a fanatical terrorist regime openly dedicated to the destruction of the “Great Satan” will have both nuclear weapons and the terrorists and missiles to deliver them. All that stands between us and that is either revolution or pre-emptive strike.

Both of which, by the way, are far more likely to succeed with 146,000 American troops and highly sophisticated aircraft standing by just a few miles away — in Iraq.