Earlier in the programme we heard from the historian David Starkey and our guest editor PD James on the role of monarchy in fostering a common identity in Britain.
But PD James was also interested in discussing whether patriotism is something that could or should be fostered in schools.
The Prime Minister has led calls for a greater sense of Britishness. The more culturally diverse the country becomes, the greater the calls for some shared values to be spelt out.
PD James went to the National Portrait Gallery with historian David Starkey to ponder on patriotism, and discuss it with Sunder Katwala, General Secretary of the Fabian Society.