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 into the port of entry…
via Border walls don’t make the country safer — they make it more dangerous — Grist
