Anne Applebaum: Iran’s regime could fall apart. What happens then?

We are now more than two weeks into a new sanctions regime on Iran, and it will be a long time before it ends. The secretary of state, Mike Pompeo, has listed 12 conditions that Iran needs to meet before that happens. They include a permanent cessation of Iranian support for revolutionary groups abroad as well as a permanent halt to Iran's nuclear program. By its own definition, the Islamic Republic of Iran is a revolutionary regime dedicated to exporting its form of radical Islam; it's also a t