CANADA STOCKS-TSX nears eight-week low as Fed fears deepen

* TSX falls 19.03 points, or 0.14 percent, to 13,114.39 * Six of 10 main index sectors decline * Fortis drops after move to acquire UNS Energy * Iamgold tumbles after suspending dividend By John Tilak TORONTO, Dec 12 (Reuters) - Canada's main stock index slipped to its lowest in nearly eight weeks on Thursday after strong economic data from the United States heightened concerns that the U.S. Federal Reserve might soon begin scaling back its bond buying program. The marke