If left unchecked, authorities say, the cartels' move into the American interior could render the syndicates harder than ever to dislodge.
Members of the so-called Gang of Eight are traveling to the border in Arizona to get a firsthand look at issues affecting the region.
Reynolds was part of a gang that stole sacks containing 2.6 million pounds from a Glasgow-to-London mail train in August 1963.
Elba Esther Gordillo has been detained on embezzlement charges.
One of the dead in a gunbattle between drug gangs is said to resemble Mexico's most-wanted drug lord, Joaquin "El Chapo" Guzman.
The government has launched a tough line on crime backed by a top-to-bottom transformation of its law-enforcement and justice systems.
The Chicago Crime Commission and the Drug Enforcement Agency bestowed that title on Joaquin "El Chapo" Guzman.
Near the site where 20 members of a Colombian-style music group and its crew disappeared late last week, according to a state forensic official.
Vigilantes patrol a dozen or more towns in rural Mexico, the unauthorized but often tolerated edge of a growing movement toward armed citizen self-defense.
