Turnout low as Congo votes on extending presidential term

By Philon Bondenga BRAZZAVILLE (Reuters) - Turnout in a referendum in Congo on Sunday was reduced to a trickle in the capital after the opposition asked voters to boycott the poll on whether the president can legally stand for a third consecutive term in an election due next year. President Denis Sassou Nguesso, 71, is the latest long-serving African president to try to prolong his grip on power by changing the constitution. Several other such efforts have provoked violence, and four died in Con