An up-to-date examination of Mexico's version of the "War on Drugs" that exposes the evolution of major cartels and their corruption of politicians, law-enforcement agencies, and the Army.What can President Enrique Peña Nieto do to curb the narcotics-induced mayhem in Mexico, and what would be the consequences to the United States if he fails? This book analyzes Mexico's transition from a relatively peaceful kleptocracy controlled by the Tammany-Hall style Institutional Revolutionary Party/PRI (1929-2000) to a country plagued by rural and urban enclaves of grotesque violence. The author examines the major drug cartels and their success in infiltrating American and Mexican businesses; details the response from the Obama administration; assesses the threat that the continuing bloodshed represents for the United States; and emphasizes the constraints on America's ability to solve Mexico's crisis, despite U.S. contributions of intelligence, military equipment, training, and diplomatic support.