The U.S. Treasury Department dropped a bombshell today when it sanctioned four al Qaeda operatives known to be operating in Iran. Osama bin Laden’s son Sa’ad along with Mustafa Hamid, Muhammad Rab’a al Sayid al Bahtiti, and Ali Saleh Husain have been designated as terrorists under Executive Order 13224. All four men serve on al Qaeda’s Shura Majlis, or executive council. Mustafa Hamid’s dealings with Iran, which the Treasury provides great detail, are especially interesting. A senior U.S. military intelligence official who tracks al Qaeda told me that Hamid is both “al Qaeda’s emir of Iran” and “al Qaeda’s ambassador to Iran.” Here is how the Treasury described Hamid: