Mexico's drug war Pictures - CBS News Mexico's drug war An armed man belonging to a local self-defense group patrols from the back of a pick-up truck in the town of Buenavista, Mexico, May 20, 2013. Self-defense groups started to spring up in February to fight back the Knights Templar drug cartel which is extorting protection payments from cattlemen and lime growers, butchers and even marijuana growers. The federal government sees both the self-defense forces and the cartel as dangerous enemies. Credit: Marco Ugarte/AP