U.N. investigators interviewed Lebanon’s president on Friday about the assassination of a former prime minister — the first time the U.N. commission has received testimony from a head of state since it began collecting evidence in June. Chief U.N. investigator Detlev Mehlis has said President Emile Lahoud is not a suspect in the Feb. 14 truck bombing that killed Prime Minister Rafik Hariri and 20 others on a Beirut street. But a suspect made a call to the president’s phone minutes before the blast, according to the U.N. commission’s interim report last month. Full Story