The illegal drugs industry is booming again. Having fallen during the global financial crisis, production of hard drugs is as high as ever. Colombia’s coca crop has increased since the FARC, a Marxist insurgency, disbanded, as traffickers have moved into its territory. Opium has flourished in Afghanistan since most NATO forces pulled out in 2014. Africa is probably suffering most, as a conduit for drugs from both Latin America and Central Asia. Several countries in the continent are afflicted, but Guinea-Bissau, on the Atlantic, perhaps worst of all. In one recent haul police found enough cocaine to cut 100m lines.