Minneapolis is once again at a boiling point after another person was shot and killed by an immigration agent. Federal officials insist the man was an imminent danger to officers out doing their job. The city's mayor and Minnesota's governor are urging protesters to keep calm - and again demanding that the raids stop immediately.

Also: American importers could soon be paying a lot more for Canadian goods. U.S. president Donald Trump is once again threating tariffs over Canada's growing ties with China. This time, its a 100 per cent levy on all exports from Canada, if the government moves forward with making a deal.

And: A massive blast of Arctic air has much of Canada in its grip. Temperatures have plunged to dangerous lows, triggering weather alerts across the country. In the east, ice has shut down Newfoundland's largest power plant, putting the province at risk of an energy emergency.

Plus: Political prisoners in Venezuela, Marketplace investigates grocers limiting competition, A Catholic AI chat-bot, and more.