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How worried should you be about nuclear war?
Prof Margaret Macmillan says we should be concerned about nuclear proliferation.
Duration:
More clips from War and Humanity
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Are women as warlike as men?
Duration: 00:57
More clips from The Reith Lectures
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"I want to make a case for moral courage."
Duration: 01:25
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Are women as warlike as men?
Duration: 00:57
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History does not repeat itself
Duration: 01:56
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An obsession with history killed a young Polish writer
Duration: 01:41
