FILE - An undated file photo of Enrique Kiki Camarena, the U.S. Drug Enforcement Administration, DEA, agent, murdered in Mexico in 1985. In the U.S., outrage grew over the surprise decision to overturn Mexican drug lord Rafael Caro Quinteros conviction for the 1985 slaying. Caro Quintero walked free Friday, Aug. 9, 2013, after a federal court overturned his 40-year sentence in Camarenas kidnapping, torture and murder. (AP Photo, File)
A U.S. Drug Enforcement Administration technician holds several pounds of Mexican meth confiscated in the St. Louis area on Friday, Sept. 7, 2012. Methamphetamine long has been a significant problem in the United States, but the DEA says the influx of meth from south of the border is offsetting any gains made against clandestine meth labs in the U.S. Seizures at the border and in several U.S. cities are up sharply. (AP Photo/Jim Salter)
(Photo: U.S. Drug Enforcement Administration)
A submarine, seized on July 2 in a shallow river inlet close to the Ecuador-Colombia border, was thought to be intended for smugglers to transport tons of cocaine.