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Sep 13, 2018, 3:12 pm159 pts
Grist
A few weeks after Customs and Border Control completed a border wall along Arizona’s southern boundary in 2008, a monsoon arrived. Floodwaters rose to 7 feet, nearby patrol roads eroded, and debris clogged the wall’s mesh fencing and grates, turning it into a temporary dam. The water poured over the wall…
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