Drugs and the Dentist BBC World Service programme. Drugs like crystal meth and opiates wreck the teeth as well as the mind. In America, more than just about any country, good teeth are a sign of success and so dentists like Dr Bob Carter are helping fix addicts’ teeth.

I had a fascinating 7 days in Greenville, North Carolina witnessing the work of dentists. I learnt something new about how to use generalisations rather than specifics in telling the story and in characterisation.