text: Militants Turn Over Keys to Najaf Shrine NAJAF, Iraq - Thousands of pilgrims streamed into the Imam Ali Shrine on Friday, and militants who had been holed up in the site left it, handing the keys to Shiite religious authorities after Iraq's top Shiite cleric brokered a peace deal to end three weeks of fighting in this holy city.    Dozens of militants piled Kalashnikov rifles in front of the offices of their leader, radical Shiite cleric Muqtada al-Sadr...