In America today, an expanding network of surveillance cameras tracks our bank deposits, our shopping expeditions, and our workplace trysts in the supply closet. When we venture online, hundreds of companies diligently note the websites we consume, the files we download, and the comments we make. Our smartphones are even worse stool pigeons than our computers, constantly keeping tabs on our precise geographic coordinates. If you grow weary of such oppressive attention, if you long for a little Waldenesque solitude outside the crosshairs of our panoptic culture, there is still one place you can go to get away from it all, writes Greg Beato: the borderlands of California, Arizona, New Mexico, and Texas.