The small streets behind the Tehran Bazaar are a kind of free zone for drug addicts. A man smokes heroin.Iran has one of the highest number of people addicted to drugs, an estimated 2 million. With the production of opium at an all-time high in neighboring country Afghanistan. High unemployment, aggravated by the USA and European sanctions, the Islamic stigma against drinking alcohol, have helped to turn ever more Iranians to hard drugs.