Canadian Press: Prime Minister Stephen Harper is frowning on a proposal for a high-speed rail link between Ontario and Quebec that would boost the economy and help the environment, Premier Dalton McGuinty said Tuesday. Without federal support, the proposed link between Windsor, Ont., and Quebec City may never get off the ground, McGuinty said. “I continue to be a big fan of (the plan), as does (Quebec Premier) Jean Charest,” McGuinty said. “The prime minister is not as much of a fan on …