Mexico has many gangs, but the Sianola is one of Mexico's largest gangs and drug cartels. It is rated number five on the Forbes list of biggest organized crime groups in the world.
The Sinaloa's main illegal operation is transporting drugs from South America into the United States. It is estimated that the United States spends $100 billion on illegal drugs a year. The Sinaloa is estimated to earn $3 billion a year from this. It is also noted to be a dangerous and violent gang that terrorizes the Mexican population. In February 2014, the leader of the Sinaloa was arrested, but the drug cartel is still active today.