Presents a searing investigation into the role of the drug trade in the black market for firearms, both within the U.S. and across the U.S.-Mexican border. Guns and drugs are not often connected in our heated discussions of gun control-- but they should be. Grillo shows us this connection by following the market for guns in the Americas-- and how it has made the continent the most murderous on earth. He travels to gun manufacturers, strolls the aisles of gun shows and gun shops, talks to FBI agents who have infiltrated biker gangs, hangs out on Baltimore street corners, and visits the ATF gun tracing center in West Virginia. Along the way, he details the many ways that legal guns can cross over into the black market and into the hands of criminals, fueling violence here and south of the border. -- adapted from jacket