India, March 31 -- Air Canada announced Monday its CEO will retire later this year, after Michael Rousseau was criticised for his English-only message of condolence following this month's deadly crash in New York. Canada's largest airline, based in French-speaking Quebec, said Rousseau told the board he will leave by the end of the third quarter. Canada is an officially bilingual nation, and Prime Minister Mark Carney said Rousseau's decision to retire is "appropriate." "It is essential that the next CEO of Air Canada is bilingual," he said. Carney had said the English-only message showed a lack of compassion and judgment. Quebec's premier and others called on the airline executive to resign. Rousseau had been criticised for not speaking Fr...