Winnipeg Free Press | CANADA STOCKS-TSX may open lower on fiscal cliff, Greek concerns Reuters Nov 13 (Reuters) - Canada's main stock index looked set to open lower on Tuesday, tracking global markets, as lingering concern about a possible U.S. fiscal crisis and delays to an installment of Greek aid dampened investors sentiment. TOP STORIES ... TSX heads for lower open amid Greek bailout, fiscal cliff worries Canadian dollar down amid Greek bailout, fiscal cliff worries, lower commodities |