Asadullah was a prosperous poppy farmer in southern Afghanistan for 20 years until the Taliban authorities abruptly began enforcing a long-standing ban on the crop. From 1.6 hectares in Helmand -- long the heartland of poppy production -- the 65-year-old earned between 250,000 to 500,000 Afghani ($3,500 to $7,000) per season from the plant, which is used to produce opium and heroin. Forced by the authorities to switch to other crops, he is now struggling to make ends meet. IMAGES AND SOUNDBITES ARRANGED IN SEQUENCES