America is lost. But we can still save the rest of the world from Trump’s tariffs

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Open this photo in gallery: U.S. President Donald Trump delivers remarks on tariffs in the Rose Garden at the White House in Washington, D.C., U.S., April 2.Carlos Barria/Reuters Wolfgang Alschner is an associate professor at the common law section of the University of Ottawa. He holds the Hyman Soloway Chair in Business and Trade Law. On April 2, the United States closed its doors to world trade. Canada was spared the worst. It was exempted from the 10-per-cent universal tariff and the country-specific tariffs of up to 50 per cent. But Canada cannot escape the global fallout. Billions of dollars...