Africa's 2nd biggest slum can be find in Nairobi, not even very far from the nice developed city center (maybe 5km). No one knows how many people are living there, some say even up to 300 000 people. Rarely electricity (I just was in total darkness), no or very poor sanitaries, no income.
Of course extremely high numbers of rapes, murder and hiv+infection.
When I think of these experiences I always wonder what we are quarreling about....