In this file photo, Dr. Jose Manuel Mireles speaks during an interview Dec. 1, 2013. Mireles is one of the subjects of the new film Cartel Land which follows vigilante groups fighting drug gangs. Omar Torres/AFP/Getty Images hide caption
U.S. Mexico drug wars U.S. Mexico drug wars
A Mexican soldier stands guard next to marijuana packages in Tijuana following the discovery of a tunnel under the U.S.-Mexico border in 2010. AFP/AFP/Getty Images hide caption
'Narconomics': How The Drug Cartels Operate Like Wal-Mart And McDonald's
State police officers patrol a highway between Ciudad Victoria and Matamoros, in northeast Mexico, in 2011. Mexico's drug and turf wars have descended on the once tourist friendly border town of Matamoros. Alexandre Meneghini/AP hide caption
Matamoros Becomes Ground Zero As Drug War Shifts On Mexican Border
A Mexican guard at a prison in Tijuana where 17 men are being held on charges they were digging a drug-smuggling tunnel from Tijuana to the U.S. border at San Diego. The men say they were kidnapped and forced to do the work. Special to NPR hide caption