Three Ecuadoran villagers were in a Toronto court Thursday, trying to preserve their lawsuit against a…mining company. Villagers filed a $1 billion human rights lawsuit last year against Copper Mesa Mining Corp., two of its directors and the Toronto Stock Exchange. They accuse the company of hiring armed security forces that have intimidated, threatened and assaulted villagers…The lawsuit claims getting a listing on the TSX allowed the company to raise…money used, in part, to hire security…The TSX and the company say the suit should be dismissed now before it gets to trial. The company has said its business practices are ethical and responsible.