21. Vietnam is struggling to wipe out its own crops of poppies used to make heroin, and many Vietnamese fear a rising rate of drug addiction. 22. Indian smugglers barter for those goods with wine, chemicals -- particularly acetic anhydride which is used to make heroin -- spices, betel leaf and cattle. 23. Colombia is the source of most of the cocaine sold on US streets as well as marijuana and opium poppy from which heroin is made. |