Convoys of military vehicles are now a common sight in the Mexican city of Culiacan, following the arrest of Sinaloa cartel ...

Between 200,000 to half a million U.S. firearms are smuggled into Mexico every year, "60 Minutes" reported last December.

Border Patrol agents near Tucson arrest three alleged traffickers and a foot guide linked to the Los Memos criminal organization.

In Mexico's Culiacan, a city of 1 million residents, an elementary school principal starts each day checking for shootouts ...

Culiacan, a city in Mexico's Sinaloa state, endures violence as rival factions of the Sinaloa cartel battle for control.

DETROW: Let's start with this - tell us about some of these nearly 30 cartel leaders who have been handed over to the U.S. GRILLO: It's really an immense hit on cartels. These are major players - ...