Libyan leader Moammar Gaddafi survived a NATO missile strike that killed his youngest son and three grandchildren and wounded friends and relatives, a Libyan government spokesman said. Gaddafi and his wife were in the Tripoli house of his 29-year-old son, Saif al-Arab Gaddafi, when it was hit by at least one missile fired by a NATO warplane, according to spokesman Moussa Ibrahim.