"A new U.S. government report says 87 percent of the guns seized by authorities in Mexico's drug war are traced back to the United States. Mexican drug cartels find it much easier to obtain firearms north of the border. There are tens of thousands of licensed gun shops in the U.S. There is just one in Mexico, and it's run by the army."
It goes downhill from there....
ETA: They are getting thouroughly spanked in the comments section.