Imagine that you’re in a large field. Dust swirls around your ankles. Only an occasional weed interrupts the rocks and sands. Every step threatens to sprain your ankle. Rocky hills surround you on three sides. And these hills have eyes. You slowly look around the desert and white shards of light catch your eye. Reflections of the sun off lenses of cameras mounted on poles about every every 30 degrees around the perimeter of the field.