TORONTO (CP) - Ontario is playing a "dangerous" game and adding fuel to separatist fires by claiming it is treated unfairly by the minority federal government, National Revenue Minister John McCallum said Thursday. McCallum didn't pull any punches in a breakfast speech to the Toronto Board of Trade, calling Premier Dalton McGuinty's claims of a $23-billion fiscal gap "analytically wrong" and nothing more than a public relations campaign. "Let's not talk about the $23 billion gap because it's nationally dangerous, and it's incorrect and not meaningful as an indicator of fairness or unfairness," he said. "It is a communications strategy...