Border Wars - Season 1 Episode 5 -

National Geographic goes inside the US-Mexico border with unprecedented access to the growing arsenal of high tech cameras, ground radar, and skilled trackers who are faced with the challenge of controlling the desert every day.A report on illegal immigration follows drug smugglers and job seekers as they risk their lives attempting to cross the Mexico-U.S. border. Also, a look inside the U.S. Border Patrol.