Robots in Seattle

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Simon Jack reports from Seattle, where he visits Microsoft's headquarters to talk robots and artificial intelligence with Eric Horvitz, director of Microsoft's research lab. John Kim from travel group Expedia explains how the role of data is expanding in his business, and Simon also visits Seattle's sea port to see how changes in the world economy are affecting the flows of trade. (Photo: Robot at an industrial trade fair in Germany, Credit: AFP/Getty Images)