North Korea and the Islamic Republic of Iran share the dubious distinction of having been designated state sponsors of terrorism by the U.S. Department of State. Iran was added to Washington’s terrorism list in January 1984 (mainly for its involvement in the attacks that Shia Islamist militants had launched against the U.S. embassy and the U.S. peace-keeping force in Lebanon), and has remained on it ever since. In May 2015, President Obama, despite his strong commitment to a nuclear deal with Tehran, reaffirmed that “Iran is a state sponsor of terrorism.” Having blown up a South Korean airliner in