Follow FRONTLINE/World reporter Claudine LoMonaco as she retraces the tragic journey of Matias Garcia, a chili pepper farmer from a small Zapotec Indian village in the state of Oaxaca, Mexico, who crossed the border looking for work and died in the Arizona desert. LoMonaco and producer/reporter Mary Spicuzza find Garcia's family and interview his surviving brother and others. Their responses to LoMonaco reveal the dangers faced by desperate migrants. read more

Essential Backgrounders from The New York Times Read New York Times reporter Timothy Egan's in-depth analysis of the most dangerous border crossings, watch a slideshow about children smuggled across the border, travel on a voyage through Guatemala with migrants hoping to reach the U.S., and explore the perilous routes across the border in an interactive feature.