Episode 3 takes listeners into one of the world's biggest informal settlements - or so called "slum" - Khayelitsha. Around 400 000 people live inadequate conditions in Cape town, South Africa. Lack of drinking water, medical services, and schools are only some of the problems of informal settlements. Charles Witbooi, program head for advocacy and volunteering engagement at Habitat for Humanity South Africa, explains why the word "slum" should not be used in South Africa.