Khat exports are worth around $ 100 million a year to Kenya. Farmers and traders hope that their economic and political clout will finally reopen the long-closed border with Somalia permanently.

Young people struggling with addiction in Zimbabwe are caught between non-existent public mental health services and unregulated rehab centres. Testimonies describe military drills, corruption and confinement in facilities that claim to offer treatment.

More and more people around the world are taking drugs, and more and more people are dying from them. The problem cannot be solved with security measures alone. What is needed instead is more investment in development policy approaches.