Windsor (Canada) (AFP) – Police in Canada were positioning Saturday to clear a key bridge on the US border, snarled for days by truckers protesting against vaccination rules, an AFP journalist observed. “We urge all demonstrators to act lawfully & peacefully,” police in Windsor, Ontario tweeted in announcing the deployment. The normally busy Ambassador Bridge links Windsor to the US city of Detroit, Michigan. Dozens of police officers and vehicles had arrived on the scene by 8:00 am (13H00 GMT) and begun taking positions near the approximately 50 protesters whose big trucks, vans and pick-ups…