from raw story: The US military may have inadvertently taught one of Mexico's most notorious drug cartels advanced military tactics, an al-Jazeera investigation alleges.
In the early 1990s, members of an elite Mexican military squad were trained at Fort Bragg, North Carolina, in counter-insurgency and counter-narcotics techniques. Ironically, somewhere between 30 and 200 of the approximately 500 Mexican soldiers who trained there went on to form the Zetas drug cartel, al-Jazeera reports.
Craig Deare, whom al-Jazeera describes as "a former US special operations commander," told the news network that the Mexican soldiers "were given map reading courses, communications, standard special forces training, light to heavy weapons, machine guns and automatic weapons."
related update: US military unit tied to new anti-narcotics program in juárez
flashback: gangs spreading in the military