About one citizen in every 20 owns a registered firearm and millions more weapons circulate illegally. The gnawing fear of violent crime is such that most houses are surrounded by walls and barbed wire, often electrified to deter intruders. The wealthier neighbourhoods of Pretoria and Johannesburg are patrolled by armed guards from private security firms, who can be summoned at the touch of a panic button. Even so, many people opt to live – like Oscar Pistorius –... (GunPolicy.org)