Iran last week decided to play power broker. It invited Iraq's President to visit Tehran to discuss regional stability, and it sought to bring Syria into the process as well. This was not greeted with glee in Washington. But it should have been. One of America's top strategic interests is to get Iran to behave less like a revolutionary cauldron and more like a traditional nation-state. For the mullahs and their mad President to express a desire for a stable neighborhood is a good first step.
Step two should involve the U.S. talking, directly and seriously, to Iran. Our current conceit, which...