The content originally appeared on: CNN New York (CNN Business)The United States' largest trading partner isn't China, or Mexico. It's Canada. And the Ambassador Bridge, which separates the US and its neighbor to the north, may be the most economically important one-and-a-half miles of roadway in the Western Hemisphere. Until this past week it got very little attention for the crucial role it plays in the economies of the two nations. A total of $664 billion worth of goods moved […]
