That is a huge social problem, but it is also a big challenge for business.

ECONOMIST: Pharmaceuticals in South Africa

If I were given total power, I could very easily engineer a nation in which coffee would become a huge social problem - a nation in which young people would binge-drink coffee every Friday and Saturday night and then rampage around town centres being anti-social, getting into fights and having unprotected sex in random one-night stands.

BBC: Viewpoint: Is the alcohol message all wrong?

Today, boarded-up houses, graffiti, burned-out cars and a huge crime and anti-social behaviour problem have been replaced with sport's centres and libraries youth clubs.

BBC: Taking Back the Streets