Actually, no, heroin from Afghanistan travels west to Russia and Eastern Europe and creates a lot of problems there as the prices have dropped significantly, so

Actually, no, heroin from Afghanistan travels west to Russia and Eastern Europe and creates a lot of problems there as the prices have dropped significantly, so poor people are getting hooked on it, and then can't afford the habit. In US 96% of heroin comes from Latin America, mainly Mexico. You can check it on DEA or White house official sites, for instance https://www.whitehouse.gov/ondcp/global-heroin-market https://www.whitehouse.gov/ondcp/global-heroin-market