BEIRUT (Reuters) - Senior Lebanese intelligence official Wissam al-Hassan, who led the investigation that implicated Syria and Hezbollah in the assassination of former prime minister Rafik al-Hariri, was killed by a huge car bomb in Beirut on Friday. The bomb, which exploded in a busy street during rush hour, killed seven other people and wounded about 80, officials said. The attack prompted Sunni Muslims to take to the streets in areas across the country, burning tires in protest. ...