More than 70,000 people have been killed in drug-related violence in Mexico since 2007 when the government launched a militarized attack on the warring cartels.
President Enrique Pena Nieto, who took office in December, has shifted the focus away from going after cartel bosses to tackling violent crimes such as extortion and kidnapping.
The shift has raised concerns that Mexico may cooperate less with U.S. security forces in the fight against the cartels.
(Additional reporting by Tim Gaynor in Phoenix and David Ingram in Washington; Writing and additional reporting by Gabriel Stargardter; Editing by Simon Gardner and Mohammad Zargham)
Article Appeared @http://news.yahoo.com/mexico-releases-drug-lord-behind-1985-dea-agent-011348215.html