It seemed impossible that a modern airport, full of prosperous and purposeful travellers, was only kilometres away from those crushed and cindered dreams. My first impression was that some catastrophe had taken place, and that the slums were refugee camps for the shambling survivors. I learned, months later, that they were survivors, of course, those slum-dwellers: the catastrophes that had driven them to the slums from their villages were poverty, famine, and bloodshed. And five thousand new survivors arrived in the city every week, week after week, year after year. As the kilometres wound