Canadian truck drivers protesting COVID restrictions and vaccine mandates temporarily shut down traffic on a bridge linking Canada with the U.S. city of Detroit Tuesday. The action sparked concerns over supply chains for the auto industry if protests continue to grow. The mayor of Ottawa on Sunday declared a state of emergency over the so-called Freedom Convoy, whose organizers have been linked to far-right and neo-Nazi movements. Meanwhile, plans for a similar convoy in the U.S. are being discussed on social media.