Fifteen years ago, Glenn Spencer left his home in California for a reason: “to help secure the border” between the United States and Mexico. Spencer now lives on a ranch in Arizona, about 100 meters from the metal barrier that separates the two countries. His one-man effort against illegal immigration has put people crossing the Sonoran Desert at risk. Spencer says he has reported or captured thousands of people over the past 15 years. He believes most of them were transporting illegal drugs. However, most experts say that drugs are rarely brought across the border that way. Spencer uses drone aircraft launched from his farm in Cochise County. He developed the drone technology he uses. “The computer is looking at five miles of information, and then when something happens the algorithm says ‘hey, there’s people out there.’” Spencer leads a group called the American Border Patrol. It is considered a “hate group” by the Southern Poverty Law Center, an organization that reports on and fights discrimination. Spencer says he has spent one million dollars of his own money to stop the illegal movement of people across the border. He believes it is the reason he was born.