TSX tracks global markets lower in broad retreat

By Alastair Sharp TORONTO (Reuters) - Canada's main stock index fell sharply on Tuesday, tracking global equities, as volatility in bond markets and other worries rattled investors worldwide. "There's a lot of uncertainty and until we get through that period, we're just going to have to suffer this," said RKH Investments Chief Operating Officer Rick Hutcheon. The Toronto Stock Exchange's S&P/TSX composite index gave up 109.49 points, or 0.72 percent, to end the