It's estimated that more than 1 million undocumented immigrants cross the US-Mexico border each year. With a growing tide of illegal activity that includes human and drug smuggling, the US government has tightened its grip on the 2,000-mile border. But by foot or by car, immigrants and their traffickers will do whatever it takes to reach the United States, often risking their lives crossing a treacherous desert. National Geographic goes to the border to examine this polarizing topic, following as Mexican drug smugglers and job seekers attempt to cross the border ... and make it. Then, with rare access to the US Border Patrol, go on duty with officers working with high-tech tracking to stem the tide of illegal immigrants.
National Geographic - Mexican Border Wars : Season 1