Heidi Richter works behind the counter at Caffe Aribac. Her customers include longtime locals, militia members, Border Patrol agents, and volunteers for the humanitarian groups that leave food and water for border-crossers out in the desert.

Heidi Richter works behind the counter at Caffe Aribac. Her customers include longtime locals, militia members, Border Patrol agents, and volunteers for the humanitarian groups that leave food and water for border-crossers out in the desert.