Prof Goldblatt, professor in events management, said Scotland would benefit significantly from job creation and new revenue from foreign visitors if it was to lead its own tourism planning.

BBC: Scottish Independence: 'Full levers' call for economy

Prof Anthony Pereira, professor of Brazil Studies at Kings College London, says the pacification programme is "largely positive".

BBC: Rio's shanty towns spread their wings

Prof Grayling is a professor of philosophy at Birkbeck College, University of London, and a fellow of St Anne's College, Oxford.

BBC: Richard Dawkins