A border patrol vehicle patrols along a section of the controversial US-Mexico border fence expansion on previously pristine desert sands between Yuma, Ariz., and Calexico, Calif.
A border patrol vehicle patrols along a section of the controversial US-Mexico border fence expansion on previously pristine desert sands between Yuma, Ariz., and Calexico, Calif. David McNew Getty Images
A border patrol vehicle patrols along a section of the controversial US-Mexico border fence expansion on previously pristine desert sands between Yuma, Ariz., and Calexico, Calif. David McNew Getty Images