TORONTO — Canada's main stock index fell more than 200 points Friday, weighed down by losses in energy and base metal stocks, while U.S. markets were mixed. The S&P/TSX composite index closed down 215.28 points at 25,483.23. In New York, the Dow Jones industrial average was down 165.35 points at 44,546.08. The S&P 500 index […]