Aleks Krotoski is joined by Lord Robert Winston, Professor of Science and Society at Imperial College, London, to discuss why every new technology we develop makes us as a species more vulnerable.

We also hear from Richard Wray from the frontline of the Mobile World Congress about Windows' latest operating system for mobile devices, and Bobbie finds out all the dirt on vark.com, the social search company that Google recently purchased for a whopping $50 million.

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