People arrested for being members of the MS13 Mara Salvatrucha street gang among other crimes flash their gangs hand sign from inside a jail cell at a police station in San Salvador El Salvador October 12 2012 MS13 is active in much of the US particularly in the western and northeastern regionspimgdivpREUTERSUlises Rodriguez datamcecaptionPeople arrested for being members of the MS13 Mara Salvatrucha street gang among other crimes flash their gangs hand sign from inside a jail cell at a police station in San Salvador El Salvador October 12 2012 MS13 is active in much of the US particularly in the western and northeastern regions
Joaquín "El Chapo" Guzmán's Sinaloa cartel is arguably the most powerful drug-trafficking organization in the Western Hemisphere - and in the world.
As of 2013, the DEA believed that the cartel supplied "80% of the heroin, cocaine, marijuana and methamphetamine - with a street value of $3 billion - that floods the Chicago region each year."
And, as a DEA report released this summer makes clear, Guzmán's organization has only expanded and deepened its US operations in the last two years.
Shading indicates areas of cartel control, with darker-colored areas indicating population density, which is a sign of a potentially deep market for narcotics.
The DEA's report cautions that "Mexican transnational criminal organizations (TCOs) pose the greatest criminal drug threat to the United States; no other group is currently positioned to challenge them."
And, the DEA notes, "The Sinaloa Cartel maintains the most significant presence in the United States."
Guzmán's Sinaloa organization, a multibillion-dollar operation, is "the dominant [transnational criminal organization] along the West Coast, through the Midwest, and into the Northeast."
Sinaloa's geographical alignment is significant. Its positions in Southern California, the Chicago region, the Northeast, as well as Florida place it within large population centers, which, according to the DEA, gives it access to "potential high density drug markets that TCOs will look to exploit through the street-level drug distribution activities of urban organized crime groups/street gangs."
Business Insider/Andy Kiersz
This map, developed based on the testimony of former Sinaloa operatives, shows the cartel's distribution network as of the late 2000s.
Those family members and people they vouch for run some aspects of the trafficking operation, while "actual members of Mexican TCOs are usually sent to important US hub cities to manage stash houses containing drug shipments and bulk cash drug proceeds," the DEA's threat assessment adds.
Third-party distributors, like gangs and other organized crimes groups, are vital to the operations of Mexican TCOs.
According to the DEA's drug-threat assessment, "Mexican TCOs depend on street-level gangs, many of which already have a customer base, for drug distribution."
Among the gangs that the Sinaloa cartel has worked with, according to the assessment, are the Latin Kings, the Bloods, the Crips, MS-13, and the Sureños.
Pairing with national-level and regional gangs allows Mexican cartels to reach more customers and, importantly, lets the cartel leadership remain in Mexico - out of the reach of US law enforcement (though not all Sinaloa cartel members in the US avoid detection).
Heroin trafficking has increased along much of the US southwest border, with much of it coming through areas that border Sinaloa cartel-controlled territory.
The Sinaloa organization, like other Mexican cartels, has found a growing market for heroin in the US, and has shifted much of its production and trafficking accordingly.
According to the DEA, the US heroin market was historically divided between the area west of the Mississippi River, where Mexican-produced black-tar heroin was used, and the area east of the river, where South American-produced white-powder heroin was used.
Recent research from the DEA indicates that the cartels are now producing white-powder heroin from opium cultivated in Mexico, which could allow them to wrest control of the production process away from South Americans, target new customers, and keep more of the profits from heroin sales. It costs $5,000 to make a kilogram (2.2 pounds) of heroin in Mexico, and it can sell for up to $80,000 a kilogram on the US market.
And it's likely that the Sinaloa cartel is driving much of that production: In 2014, it is believed that the production of opium increased 50% in Mexico, and in Guerrero state, a hotbed for heroin production, farmers and officials told The New York Times that the trade is controlled by the Sinaloa cartel - whose opium and marijuana fields in the country reportedly cover 23,000 miles, an area larger than Costa Rica.
Many of the areas in the US where the Sinaloa cartel has the highest influence also saw the highest number of heroin-overdose deaths in 2013
This shift in production indicates that Mexican cartels are well versed in American drug-consumption trends.
"The cartels have a pretty good handle on the appetite in the US," Jack Riley, the deputy administrator of the Drug Enforcement Administration, told The New York Times.
Spencer Platt/Getty Images
"They understand the prescription drug issue here, and that is one of the major reasons why you are seeing the expansion of poppy production," Riley added.
The increase in US heroin consumption, and the partnerships Guzmán in particular has made in order to supply it, have earned the fugitive Sinaloa kingpin a nefarious distinction.
"'El Chapo' Guzmán is the world's #1 drug criminal," a DEA spokesperson told Dolia Estevez at Forbes.
"El Chapo has facilitated a lot of American deaths through the violence of people that work for him."
Here is the full DEA report Mexican cartel activity in the US:
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