MEXICO CITY — As the U.S. and Mexican governments increasingly target the brutal criminal gang known as Los Zetas, questions are being asked about why law enforcement officials don't seem to be paying equal attention to an older and larger cartel that's the largest provider of illegal drugs smuggled into the United States.
Public security analysts say a view has spread among some Mexicans that President Felipe Calderon is soft on the Sinaloa Cartel. And now a court filing by an accused kingpin in U.S. federal court has suggested that the Obama administration, too, is negotiating with the Sinaloa Cartel even as it ratchets up pressure on the rival Zetas.
Experts in Mexico City and Washington say the issue is as much about public opinion in the run-up to Mexico's 2012 presidential elections as it is about efforts to reduce the violence that's killed some 40,000 people in Mexico since 2006.
"The perception that people have of the government not going after the Sinaloa Cartel is undermining its credibility," said Alberto Islas, a security analyst with Risk Evaluation Ltd., noting that the group's leaders "are the biggest smugglers of cocaine, meth and heroin into the U.S."
The Zetas, led by deserters from the Mexican army, got their start in the late 1990s as an enforcement arm of the Gulf Cartel along Mexico's border with Texas. They've since struck out on their own, dismembering their rivals — sometimes literally — and engaging in extortion, kidnapping and human trafficking as well as narcotics smuggling.
In contrast, the Sinaloa Cartel, which U.S. officials say provides about 25 percent of the illegal drugs smuggled into the United States, generally favors bribing high government officials over the brutality Los Zetas employ to protect their smuggling routes, experts say.
On July 25, the White House issued an executive order naming four groups around the world as transnational criminal threats. Along with Los Zetas, the order named the Yakuza of Japan, the Camorra of Italy and the Brothers' Circle, which operates from countries that once composed the Soviet Union.
Rafael Lemaitre, a spokesman for the White House Office of National Drug Control Policy, said the order didn't include the Sinaloa Cartel because its activities were limited primarily to drug trafficking, while the Zetas had branched into a "variety" of other crimes.
The suggestion that the United States also deals less harshly with the Sinaloa Cartel comes largely from court filings in the case of Vicente Zambada-Niebla, the son of an alleged Sinaloa kingpin, whom Mexico extradited to stand trial in Illinois on narcotics charges. In court papers, he's alleged that before his March 2009 arrest he served as an informant for U.S. Drug Enforcement Administration agents operating in Mexico.
The court filing charged "that the United States has a policy of entering into agreements with individuals who they know are violent narcotics traffickers, so long as those persons are willing to provide information against other drug traffickers, and that they entered into such an agreement with the leadership of the Sinaloa Cartel."