CODEINE COUGH SYRUP: MEXICAN STREETS TO US DOORSTEPS

From gritty avenues in Mexico to the doorsteps of Americans hungry for a buzz, codeine cough syrup is making its trip. Pedal-pushers sell it by the gallon, often mixed with other substances to make it more potent. The demand in the US is huge, and smugglers are creating new ways to get it across the border. Some people use codeine cough syru