Financial Times: The heart of Nandom is a fork in the road. It is here, in one of the northernmost towns in Ghana, that the buses come and go. You would call it a station if it was anything more than a triangle of reddish dust, surrounded by fast-food stalls, general stores and the rural bank. Once a week, a market sets up. The rest of the time, it’s the buses themselves, privately owned mini-vans known as “tro tros”, daubed with prayers for the road – “Lord Have Mercy”, “My Redeemer Liveth” – that provide …