Behind high walls, new South African city proud to be a world apart

Green, tidy, with safe public areas and winding bicycle paths -- Steyn City is a vast "self-sufficient" development outside Johannesburg, that highlights growing controversy over South Africa's divided urban society. The 800-hectare (2,000-acre) site, surrounded by high walls, is being marketed as a luxury, car-free settlement that will provide everything from a hospital to golf courses, shopping malls and offices.