American Guns

When a murder happens in America, it’s almost always with a gun, and that gun is almost always illegal. The same is true in Latin America–only the difference there is that the illegal guns are coming from the United States. Investigative journalist Ioan Grillo says reducing gun violence requires stemming the steady flow of firearms into the black market. Grillo's newest book is “Blood Gun Money: How America Arms Gangs and Cartels.” (AP Photo/Jae C. Hong, File)