Jamila, 7, plays with her sister, Farzana, 11, after both smoked crystal, a very pure heroin. Both say that if they don't use heroin for one day, they feel pain in their body. Their parents went to beg in the city and left them with drugs to spend the day quietly. Addiction among children is widespread in Afghanistan as there is a strong belief that opium is a medicine. 30 years of war have made Afghanistan a narco-state.