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 "El Narco: Inside Mexico's Criminal Insurgency"): In "El Narco", Grillo takes a close look at the Mexican drug trade, starting with the term "El Narco", which has come to represent the vast, faceless criminal network of drug traffickers who cast a murderous shadow over Mexico.
Relevant evidence: No