By Megan Breckenridge, Staff Writer
SULLO & SULLO, LLP
HOUSTON—Although
 Mexico has long been a source of production and transit for illegal drugs, the country now finds itself embattled with powerful and 
well-financed drug cartels. An upsurge in drug-related violence can be 
traced to the end of 2006 when President Felipe Calderón launched an 
aggressive assault on drug trafficking organizations by deploying tens 
of thousands of federal police and soldiers to reign them in. But his 
initiative has been largely unsuccessful to date, and there is a rising 
chorus of voices on both sides of the border questioning the cost and 
fallout of the attack on the cartels.  
Given
 its geographic location, Mexico has been used as a staging and 
transshipment point for narcotics, illegal immigrants and other 
contraband destined for U.S. markets from Mexico, South America and 
elsewhere for decades. During the 1980s and early 1990s, Colombia’s 
Pablo Escobar was the main exporter of cocaine and dealt with organized 
criminal networks all over the world. When enforcement efforts 
intensified in South Florida and the Caribbean, the Colombian 
organizations formed partnerships with Mexico-based traffickers to 
transport cocaine through Mexico into the United States. 
These
 new allegiances flourished, since Mexico had long been a major source 
of heroin and cannabis and possessed an infrastructure that stood ready 
to serve the Colombia-based traffickers. At first, the Mexican gangs 
were paid in cash for their transport services, but in the late 1980s, a
 settlement was reached wherein they would be compensated in product. 
Payment was usually 35 to 50 percent of each cocaine shipment, which 
meant that organizations from Mexico became involved in distribution as 
well as transportation, and quickly morphed into formidable traffickers 
in their own right.
  
With
 the demise of Colombia’s Cali and Medellín cartels in the 1990s, 
Mexican gangs stepped up to dominate the wholesale illicit drug market 
in the United States. Arrests and deaths of key leaders in recent years 
have led to increasing violence as rival cartels fight for control of 
the trafficking routes into the U.S. Amid this continuous power 
struggle, gang leaders often attempt to use law enforcement to their 
benefit, either by bribing Mexican officials to take certain action 
against an opponent, or by leaking intelligence about a rival’s 
operations to the Mexican government or the U.S. Drug Enforcement 
Administration (DEA). There is also mounting evidence of corruption amid
 border security and law enforcement officers, with suspicions being 
raised about agencies on both sides of the border.
To
 many Mexicans, the rising count of gruesome drug-related murders is 
evidence that the government’s strategy to combat the cartels has 
failed. Current estimates put the death toll at close to 23,000 since 
Calderón took office in December 2006, with numbers increasing 
exponentially each year. The government insists that the majority of 
those killed in Mexico’s drug violence were involved in the narcotics 
trade. But a growing number of bystanders are dying in the crossfire, 
and Americans are among them. 
Tania
 Lozoya, 15, of El Paso, Texas, was killed by a stray bullet at her 
Aunt’s house across the border in Ciudad Juárez in May 2009, after 
gunfire broke out when two men chased another man into the backyard of 
the residence. In December, a California assistant school principal, 
Augustin Salcedo, was killed after he was abducted from a restaurant 
along with five other men while he and his wife were visiting her 
hometown of Gomex Palacio, in the northern state of Durango. The motive 
for the mass abduction is still unknown. 
Other Americans appear to have been specifically targeted.