ROUGH CUT (NO REPORTER NARRATION)<br/> STORY: Mexico's Navy have seized a warehouse full of chemicals that experts say could have been used to make millions of dollars worth of methamphetamine.<br/> More than 200 tonnes of the illicit chemicals were found in a warehouse in the port city of Lazaro Cardenas in the drug-ravaged southern state of Michoacan following an intelligence operation between the attorney general's office and the finance ministry.<br/> Authorities believed the seized goods originated from China and en route to Guatemala, were used by cartels to manufacture meth, a stimulant that is smuggled across the U.S. border and sold in crystal or powder form.<br/> Meth, which can cause brain damage and violent behavior, is a law enforcement priority in the United States, where the drug has ravaged many rural communities and forced production across the border.<br/> The home state of Mexico's embattled President Felipe Calderon, Michoacan, has become the country's methamphetamine-producing heartland and seen a dizzying increase in violence amongst feuding cartels that has displaced thousands.<br/> Nationally more than 45,000 have been killed in Mexico's army-led crackdown on trafficking.
