The Verge · Technology
Trump’s dumb border wall
About 22 miles south of the former mining town of Patagonia, Arizona, down a winding, unpaved mountain road that passes cows grazing on open range, stands a cottonwood tree believed to be at least 200 years old. The "grandmother" tree, as some locals call it, is imperiled and already showing signs of stress, almost as […] Border crossings are down. High-tech surveillance is more effective than physical barriers. Still, the Trump administration wants destructive walls anyway. Trump’s dumb border wall
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