Editor 's note : ` ` Los Zetas '' gang of hitmen and ex - cops run away from the border across Mexico . Reporter spent just five minutes in town before message became clear : Leave now . Drug dealers reveal the rules of the cartel killers and how officials are also profiting .
` ` Los Zetas '' gang of hitmen and ex - cops run away from the border across Mexico . Reporter spent just five minutes in town before message became clear : Leave now . Drug dealers reveal the rules of the cartel killers and how officials are also profiting .