Each year, thousands of people venture through the wilderness between the US and Mexico, risking their lives for the chance of a better future in the United States. Lawmakers, news channels, and television networks often report about the plight of these people, also known as undocumented migrants, usually focusing on issues of legality.  Jason De Leon has a different approach to this story. He spends time with people on the Mexican side of the border as they prepare to cross, then ventures into the hot Arizona desert to study the things they leave behind during their journey, using archaeology, sociocultural anthropology, and forensic science to tell the stories of this phenomenon. What can we learn from migrant narratives as well as the backpacks, water bottles, rosary beads - and sometimes - the bodies left behind? Join National Geographic Emerging Explorer Jason De Leon and Nebo guest host Rachel Wold to hear about Jason's astonishing work.