A son of imprisoned Mexican drug lord Joaquin “El Chapo” Guzman pleaded guilty on Friday to four criminal counts in two ...

This isn’t just a drug war anymore — it’s a hybrid criminal insurgency spreading across the hemisphere,’ one expert says.

The arrest last summer of Mexico's most elusive drug lord set off a bloody regional war, leaving more than 1,000 dead and more than 1,000 missing. NPR reports from the state of Sinaloa.