To the American public it s a 2,000-mile-long project to keep illegal immigrants, narcotics, and terrorists on the other side of the U.S. Mexico border. In the deserts of Arizona, it s a virtual fence of high-tech electronic sensors, cameras, and radar. In some border stretches it s a huge concrete-and-steel wall; in others it s a series of solitary posts designed to stop drug runners; in still others it s rusted barbed-wire cattle fences. For two-thirds of the international boundary it s nonexistent. Just what is this entity known as the fence ? And more important, is it working? Through...
To the American public it s a 2,000-mile-long project to keep illegal immigrants, narcotics, and terrorists on the other side of the U.S. Mexico borde...