Two rival theories explain how the world works. But is either true - or plausible? Gunnar Pettersson enlists historians and others involved in conspiracy-theory research to help unravel the arguments. Producer Julian Hale
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Two rival theories explain how the world works. But is either true - or plausible? Gunnar Pettersson enlists historians and others involved in conspiracy-theory research to help unravel the arguments. Producer Julian Hale