The U.S.-Canada border, as seen in this satellite map, mostly runs along the 49th parallel — and wasn't chosen at random. Planet Observer / Universal Images Group via Getty When President Trump hosted ...
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What if the US-Canada border closed permanently?
The world’s longest undefended border stretches nearly 9,000 kilometers between the United States and Canada. Every year, millions of people cross for work, school, shopping, and family visits, while ...
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