The prime minister of Canada had to reassure his nation this week that the woman he has chosen to act as the pinnacle symbol of Canadian unity does not in fact favor breaking up the country. Whether she had at one time espoused this, he did not say. He could nevertheless unreservedly declare to Canadians that now that she has been offered the job of governor general of Canada (with a household and travel budget that runs around $20 million a year) she finds herself – in her own words – "proud to be Canadian" with "the greatest respect for...