Pierre Karl Péladeau, of Quebecor World Fame, Running for Political Office

As political bombshells go, Mr. Péladeau’s announcement on Sunday that he will be a PQ candidate in the April 7 Quebec election is on par with Lucien Bouchard’s 1990 decision to quit Brian Mulroney’s government and go on to head the separatist Bloc Québécois, or Lester Pearson’s 1965 recruitment of three prominent Quebeckers—including Pierre Trudeau—to boost federalist fortunes in the province. It will certainly change Quebec. It could just as easily change Canada.