The Globe and Mail reports in its Wednesday edition that tariffs have permanently tainted Canada-U.S. relations, according to several prominent Canadian business leaders who say the country needs a new game plan for a changed world. A triple-bylined item led by Jameson Berkow says that regardless of how long the continental trade war launched by Donald Trump on Tuesday lasts, business leaders warn Canada's economic ties to its southern neighbour will never look the same. Executives are confident the country will eventually be able to diversify exports away from the U.S., but in the meantime Canadians are likely to suffer substantial economic pain. Gord Nixon, a former chief executive officer of Royal Bank of Canada who is currently chair of BCE, and also sits on investment giant BlackRock's board, said in an interview that "not a lot of companies are looking at making major investments in Canada right now" as a result of growing U.S. protectionism. "Whether there is a cost advantage or an employment advantage or a tax advantage in Canada, it is not going to make up for protectionism," Mr. Nixon said. "To some degree, unfortunately, we are already living with longer-term consequences from short-term decisions."