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Dan talks to John Nichol on his new bestseller about the Spitfire, the plane that was critical to the RAF's efforts in the Battle of Britain and the Second World War, and they discuss why it occupies such a special place in British hearts.
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If you feel confused and left behind by cryptocurrency then this is for you. We're taking you on a journey through the strange history of cryptocurrency. Why and how does it exist?
It turns out this history isn’t so much about clever codes as good old-fashioned politics.
Our guide is Finn Bru...
Dan talks to Chris West about his new history of the Eurovision song contest, and the political history that surrounds it. Image credit: Frederic de Villamil / Commons
Dan talks to BBC Security Correspondent Gordon Corera about Britain's secret pigeon spy force.