Security is an ever-present concern in South Africa, as it is in most places with wide income disparity. In practice, it means that most homes and businesses are protected by substantial fencing and private security companies. For example, here's a photo of the barbed wire surrounding the water tower I posted earlier this month:
Though I wouldn't argue with the necessity of these measures in many instances, it certainly does have a noticeable impact on the country's psyche and aesthetics. More to come on security in future posts, I'd imagine.