AMERICANS will certainly have 9/11 in mind when they vote today. But they should keep another date in mind, too — one almost exactly a quarter-century ago: Nov. 4, 1979. A clear path runs to 9/11 from the day of the raid on the U.S. embassy in Tehran and the seizure of American hostages. The 1979 embassy attack came at a time when the administration of President Jimmy Carter was trying to prop up the new Khomeinist regime in Tehran. Carter had decided to support Khomeini in the context of the so-called "Green Belt" strategy developed by National Security...