BUSTED-- In this Nov. 4, 2010 photo, bales of marijuana are wheeled out at a news conference in Jonesboro, Ga. Forty-five people were arrested 45 people along with cash, guns and more than two tons of drugs as part of an investigation by federal and local law enforcement into the Atlanta-area U.S. distribution hub of Mexico's La Familia drug cartel. (AP Photo/Atlanta Journal-Constitution, John Spink) by Michael Tarm CHICAGO (AP) — Mexican drug cartels whose operatives once rarely ventured beyond the U.S. border are dispatching some of their most trusted agents to live and work deep inside the United States — an emboldened presence that experts believe is meant to tighten their grip on the world's most lucrative narcotics market and maximize profits.
