http://www.cbsnews.com/stories/2009/02/26/60minutes/main4831806.shtml "...The Mexican government's crackdown on the cartels has resulted in a quasi war in which the rich drug gangs are fighting back with increasingly more sophisticated and powerful weapons. "Half of what we seize, 55 percent, are assault rifles…over 17,000 assault rifles, throughout the last two years," says Mexico's Attorney General Eduardo Medina-Mora. "Two thousand and 200 grenades, missile and rocket launchers, .50-cal sniper rifles," says Medina Mora.
The vast majority of these guns - 90 percent - are being purchased just over the border in the U.S. Medina-Mora wants this stopped. "The Second Amendment was never designed to arm criminal groups, especially not foreign criminal groups,"