LETTER FROM POLAND - Where the streets have no name

This week's Letter takes a look at the many name changes undergone by Polish streets. Frequent changes make it hard for local people to get around, but many names remain controversial in Poland - a similar situation facing monuments in the UK and USA. Since it is hard to find heroes who are without a blemish, perhaps we should consider the New York solution from U2's famous hit - streets with "no name". Presented by Patrick Trompiz