Question: El Narco: Inside Mexico's Criminal Insurgency is a non-fiction book, the book covers the frontline of which Mexican theater of the United States' War on Drugs, involving an ongoing low-intensity asymmetric war between the Mexican Government and various drug trafficking syndicates?
Sentence (from "Mexican Drug War"): The Mexican government has asserted that their primary focus is on dismantling the powerful drug cartels, rather than on preventing drug trafficking, which is left to U.S. functionaries.
Relevant evidence: No