Edward Stourton asks if the Egyptian revolution spells the end of old-style Islamism. As groups like the Muslim Brotherhood embrace democracy, how will they - and Egypt - change?

The overthrow of Hosni Mubarak has been described as the Middle East's first "post-Islamic" revolution: there were no religious slogans or chanting in Tahrir Square and the protestors we saw on television were largely young, seemingly secular liberals. But Islam is likely to play a major role in the development of post-revolution Egypt, with the Muslim Brotherhood the biggest and best organised political force in the country.

Edward Stourton asks what kind of society Egypt's Islamists want to create and explores how they are changing as they form political parties and prepare to contest their first fully democratic elections.