Why is violent crime soaring in South Africa?

Violent crime is soaring in South Africa, with the murder rate at a 20-year high. Getting away with murder has become normal. What's going on?

Also how did Tanzania come to be ranked as the least indebted country in Africa? What did they do differently?

And why have authorities in Nigeria warned against using the pidgin English term, “No gree for anybody”? It's triggered an online debate!