Narco Business: The irresistible rise of the Mexican mafias

The most prosperous company in Mexico is not in the top 10 Aztec companies and is not even listed in the legal commercial register. It is a consortium of drug cartels that floods the world market with illicit products, from cocaine to heroin and synthetic drugs, and whose money has infiltrated 81% of the country's economic and social fabric.

In four generations, the small-time Mexican smugglers of the 1920s have transformed themselves into the most influential mafia and financial powers on t...