BEIRUT/AMMAN (Reuters) - Lebanon said on Friday that a group of Lebanese Shi'ites kidnapped in Syria had been freed and were safe in Turkey, but produced no sign of the hostages at the centre of a kidnap drama heightening tensions over the conflict in neighboring Syria. The twist in a hostage drama that has inflamed political tensions in a country divided between foes and friends of the uprising in Syria came as Syrian activists said government troops killed at least 50 people in the centre of the country. ...