America's methamphetamine manufacturers are the latest entrepreneurs to discover the advantages of moving their factories to the Third World. Spurred by a crackdown on rural labs and the sale of ingredients used to make crystal meth in the U.S., savvy speed producers have relocated to Mexico. Authorities there recently shut down the biggest meth factory ever found in the Americas. And it's not just a North American issue - like everything else, the crystal trade is global. Mexican meth makers are apparently importing their ingredients from China and India, via Hong Kong. Their number one market, of course, is still the U.S.