Given that the report first appeared on Fox News, we should take the anecdote about Canadian Prime Minister Justin Trudeau’s meeting with President-elect Donald Trump with a grain of salt. According to the Trump-friendly cable news channel, Trudeau’s visit to Trump’s Florida home had the Canadian playing timid defense. Trump’s threat to impose sweeping tariffs on imports from Canada, the Fox report suggested, prompted a complaint from Trudeau that such a move would “kill the...