WASHINGTON — Prime Minister Justin Trudeau says U.S. President Donald Trump's tariffs on Canadian imports set to kick in Tuesday are "unjustified" and vowed that Canada will retaliate with counter-tariffs and other measures. WASHINGTON — Prime Minister Justin Trudeau says U.S. President Donald Trump's tariffs on Canadian imports set to kick in Tuesday are "unjustified" and vowed that Canada will retaliate with counter-tariffs and other measures. In a news release late Monday, Trudeau said if U.S. tariffs come into effect as Trump planned, Canada will respond with 25 per cent tariffs on $155 billion worth of American goods. Canada's response…