Canada and India have both expelled top diplomats in each other's countries, after Prime Minister Justin Trudeau said there was "credible evidence" connecting the India government to the June 18 murder of Hardeep Singh Nijjar, a Canadian Sikh leader and activist of the Khalistan movement, which supports a separate Sikh homeland. What's at the heart of Sikh separatism; what India has previously said about Nijjar; what India has long accused Canada of; the new questions for Canadian intelligence agencies; and how some Western allies have been a bit muted with their response to the explosive claims. Ukrainian President Volodymyr Zelenskyy is touring North America, beginning with a visit to the United Nations General Assembly in New York. His plea to UN members; and his warning about what could happen if Russia succeeds in its full-scale invasion. Canada's inflation rate rose to 4 per cent in August, renewing concerns of another upcoming interest rate hike. The frustration from renters and homeowners; and how some tenants are trying to stop their rent from hitting the roof. And something fishy: how a former textile factory in Montreal is now making a splash as an eco-friendly, urban fish farm.