Mexico Under Siege: 2011

U.S. missionary fatally wounded in Mexico

Missionary Nancy Davis is rushed back across the border by her husband but dies in a hospital in McAllen. He says gunmen tried to stop the couple and shot at them when they sped up.

In Mexico City, crowds protest drug violence

Demonstrators crowd Mexico City's historic downtown to call for an end to the country's unrelenting drug violence. The primary target of the protest is President Felipe Calderon, who has ruled during a period of extraordinary bloodshed.

U.S. AK-47s linked to Mexican attorney's slaying

A U.S. congressional investigation into Operation Fast and Furious, the controversial federal gun-running surveillance operation, moves to Mexico amid reports that two AK-47s sold in Arizona were found at the scene of a shootout with the suspected killers of a Mexican attorney.

Unraveling Mexico's Sinaloa drug cartel

The Drug Enforcement Administration's Operation Imperial Emperor used wiretaps to connect the dots in a labyrinth of drug smugglers who moved cocaine from Sinaloa, Mexico, to Los Angeles and New York.

The strands of the Sinaloa drug cartel web

Channeling a nonstop river of cocaine from Mexico's Sinaloa drug cartel onto trucks bound for the Eastern U.S. requires a vast web of drug smugglers in Los Angeles. And, as the DEA's Operation Imperial Emperor found, sometimes the blessing of a psychic.

Flying high for the Sinaloa drug cartel

Pilot John Charles Ward’s trips flying cocaine to the East Coast for Mexico’s Sinaloa drug cartel were the best gig he had had in years. But the men he delivered to worried the Carlsbad drug smuggler.

Suspicion in Mexico's Sinaloa cartel

Alleged Mexican Sinaloa cartel kingpin Victor Emilio Cazares didn't know it, but he was a top target in one of the largest DEA investigations ever: Operation Imperial Emperor. All he knew was that U.S. cocaine shipments were being seized across the U.S.

Wife of fugitive Mexican drug lord gives birth in L.A. County

Fast and Furious weapons were found in Mexico cartel enforcer's home

Assault weapons illegally purchased under the ATF's Fast and Furious program in Phoenix ended up in a home of the purported top Sinaloa cartel enforcer in violence-plagued Ciudad Juarez, Mexico, court records say.