KEY POINTS:
Michael Ignatieff has marched back into Canada "bearing gilt-edged promises that he had kept a close watch on our political evolution during his decades on foreign soil and that he would be appropriately sensitive to our sociopolitical nuances.
"He then, by stating a position on Quebec as a nation, proceeded to break our single most important political taboo. It is as if a papal candidate had suddenly barged into a Catholic church and set the altar ablaze."
So ran the lead editorial of one of Canada's two national newspapers, the National Post, on the day after the blaze spread to the roof. When Ignatieff, a candidate for the leadership of the Liberal Party and therefore potentially a future Prime Minister, said last June he saw the mainly French-speaking province of Quebec as "a nation" within Canada, and was open to new negotiations to enshrine that concept in the constitution, he re-opened the wound that never heals, and condemned the country to another constitutional crisis.
Last month, taking its lead from Ignatieff, the Quebec branch of the Liberal Party adopted a resolution calling for the party to recognise "the Quebec nation within Canada", and to "officialise this historical and social reality". Then the separatist Quebec party in the federal parliament, the Bloc Quebecois, seized on that to introduce a bill demanding "that this House recognise that Quebecers form a nation".
The Bloc hoped the other parties would vote against the bill, thereby demonstrating their alleged hostility to French-speaking Quebecers and their aspirations, but Prime Minister Stephen Harper was too clever for them. On Wednesday, he introduced a resolution declaring that parliament "recognises that the Quebecois form a nation within a united Canada", and all the parties flocked to support it - even the Bloc Quebecois.
Andre Boisclair, leader of the Parti Quebecois which spearheads the separatist movement within Quebec, says the motion to recognise that Quebecers form a nation "will give us a powerful tool for the international recognition of a future sovereign Quebec ... I feel better equipped today to talk about sovereignty to Quebecers than I was before the motion".
Since the "quiet revolution" of the 1960s delivered Quebec into the modern world politically, the issue of independence for Canada's only French-majority province has never gone away for long.
Parti Quebecois has been in power much of the time since, and is favoured in the opinion polls to return to power in the next provincial election. Twice it has held referendums on independence, and twice failed to get a "yes" vote, but it has promised another when circumstances are right.
In practice, "when the circumstances are right" has meant when francophone Quebecers are feeling alienated from English-speaking Canada. The first referendum on independence in 1980 was defeated 60-40, but after two failed attempts at constitutional reform the second referendum in 1995 came within a hair's-breadth of saying yes.
Canada has now almost certainly embarked, willy-nilly, on a third attempt at constitutional reform, regardless of how much the Government denies it.
But a third attempt at finding a constitutional formula that will satisfy both nationalist Quebecois and the English-speaking majority in the other nine provinces is almost certainly doomed to failure for the same reasons as the first two: there is no such formula. So at the end of this road lies a third referendum in a Quebec that is feeling rejected and alienated.
Prime Minister Harper bears a good deal of blame for this train-wreck with his too-clever resolution declaring the Quebecois to be a nation "within a united Canada", but the true responsibility lies with Ignatieff, a Canadian-born academic and journalist who had lived abroad for 27 consecutive years before he arrived in Canada from Harvard University last year to offer the Liberal Party and the country his leadership.
The lesson that most Canadians had gleaned from the gruelling ordeal of referendums and constitutional crises was that the country worked perfectly well in practice, but could not be made to work in theory - so stop obsessing about constitutional principles. But Ignatieff was absent for that time and hadn't grasped the lesson.
In the words of Ken Dryden, also at one point a Liberal leadership candidate, Ignatieff "bumped into a chair and woke the dog up". But he will probably be long gone, back to Harvard or some other ivory tower, before the storm really hits Canada.
* Gwynne Dyer is a London-based independent journalist whose articles are published in 45 countries.