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The Trump administration has begun erecting a 30-foot-high border wall that will cut through federally protected land in Arizona, despite warnings from Democratic lawmakers and activists that the new barrier and its construction could do irreparable damage to a fragile desert ecosystem.
The first phase of construction in Organ Pipe Cactus National Monument, which runs along the southern border with Mexico, will replace a two-mile stretch of 15-foot-high fencing with structures that are twice as tall and feature large flood lights to illuminate the surrounding areas.