Gerry Anderson asks if the time has come to pull down the 'peace walls' that have divided the Catholic and Protestant communities of Belfast for almost 40 years. In the years since the 1998 Good Friday Agreement, not one wall has been removed - rather, they have been built even higher and continue to be erected. Gerry talks to Belfast residents to gain a sense of the vast area of the city that the walls cover and the impact they continue to have on people's daily lives.