The number of confiscated weapons that originated in the US is on the rise.
Todd Bensman interviews a former Mexican soldier who changed sides, joining a drug cartel.
Agents are headed to the border to combat smuggling — but they likely won’t be able to the touch the retailers selling the guns.
Drug organizations have been moving operations to countries in Africa and the Middle East.
A lawyer who represented a drug lord seeks asylum in the US, after being tortured in Mexico.