In 2018, Diego and Mario joined the U.S. government-sponsored H-2A visa program, leaving their families in their home country of Mexico to harvest blueberries at a farm in North Carolina for six months. They had no idea they were about to become victims of human trafficking and that their lives would be derailed forever. In the first episode of two-part special “Head Down,” we go deep into how a visa program that brings more than 300,000 foreign agricultural workers to the U.S. every year is plagued with abuse and wage theft. All of this while the U.S. government plans to expand it.