Historian, writer and ex-politician Michael Ignatieff is this year's Princess of Asturias Awards Social Sciences winner. Michael Ignatieff has dedicated his life to studying democracy, human rights and nationalism. He has published 18 books, taught History at Cambridge, and even took part in politics when he led the Liberal Party in Canada.

After he was named this year's Princess of Asturias Social Sciences winner, we had the chance to speak with him... about his work, about his dashed hopes for world politics, and nationalism and political polarization in Spain.

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