In Ivory Coast, violent youth gangs are spreading terror across the economic capital Abidjan. For several weeks now, these groups of delinquents - some as young as ten - have gone on the rampage, staging brutal and sometimes deadly knife and machete attacks. With an inadequate response from authorities, exasperated residents are taking matters into their own hands, and lynchings are fast becoming commonplace. Our team in Abidjan reports. A programme prepared by Patrick Lovett and Florence Viala.