Finance Minister Jim Flaherty announced new rules Tuesday aimed at preventing homebuyers from getting into financial difficulty when mortgage rates rise. After consulting with major Canadian lenders, Flaherty outlined the latest weapons at Ottawa's disposal aimed at removing some of the speculative froth in the housing market. "There is no evidence of a housing bubble, but we're taking prudent steps today to prevent one," he said at a news conference in Ottawa. Broadly speaking, the plan unveiled has three components. First, Ottawa will require (1 comments)