Canada's Prime Minister Mark Carney, while addressing a press conference on US tariffs says: "Three different sets of US tariffs remain in place and will continue to pose significant threats to Canadian workers and Canadian businesses... they're all unjustified, unwarranted, and in our judgment, misguided." Canada says it would impose a 25 percent tariff on some autos imported from the United States, retaliating against President Donald Trump's levies that came into effect on Thursday. (COMPLETES VIDI392B962_EN & VIDI38ZY463_EN) IMAGES AND SOUNDBITES