"The Zetas leader and his alleged accomplices were flown to Mexico City, where they are expected to eventually be tried in a closed system that usually takes years to prosecute cases, particularly high-profile ones."
... and all the while, they will be able to conduct business from prison with the help of corrupt guards.
The Chinese communists knew how to quell the drug trade some decades ago. I know it's not "republican form of government" to say so, but the Mexican government could learn something from the Chinese on this...