With a healthy economy that is benefiting from its economically troubled neighbor to the south, Canada has little to complain about these days regarding its relationship with the United States. Yet there is always room for improvement on both sides of their lengthy, shared border. That was the message from Canadian Ambassador Michael Wilson during a recent visit to Wharton during which he addressed a wide range of topics, including border movement and security, energy trading, rebuilding Afghanistan, and political posturing in the U.S. presidential campaign regarding the North American Free Trade Agreement (NAFTA). “The relationship between the U.S. and Canada is a huge one. We share a very long border, and we are each other’s largest trading partner,” said Wilson, who noted that more than 400,000 people cross the U.S.-Canada border every day.…