He may yet turn out to be the avatar of Iranian democracy, but three decades ago Mir-Hossein Mousavi was waging a terrorist war on the United States that included bloody attacks on the U.S. embassy and Marine Corps barracks in Beirut. Mousavi, prime minister for most of the 1980s, personally selected his point man for the Beirut terror campaign, Ali Akbar Mohtashemi-pur, and dispatched him to Damascus as Iran’s ambassador, according to former CIA and military officials. The ambassador in turn hosted several meetings of the cell that would carry out the Beirut attacks, which were overheard by the National Security Agency.