. >> khun ya dui is used to feeling on edge. the sticky liquid he's scratching off these poppy seed pods is raw opium. and growing it is illegal. >> as an opium farmer, i can't ever relax, not even at night. my body may sleep, but my mind never rests. i'm always worried. >> the police could show up at any time and destroy his fields. but farmers here don't see any alternative. they used to make a living growing mangos or avocados, but transport costs have risen so much that they can no longer earn enough money from those crops. so khun ya dui's whole village lives from growing opium poppies. it doesn't make them rich, but they can afford tin roofs for their homes and even the occasional satellite dish. the biggest benefits are less obvious. thanks to the profits from the opium harvest, these children can go to school, and the elderly and ill can afford to take an ambulance to the nearest hospital. although both the police and the army also profit from the opium trade, the farmers never feel safe. last year, police arrived in khu