The UK's Deputy Information Commissioner tells Tech Tent why some new biometric technologies are "the modern phrenology", and based on "magical" thinking. We discuss whether the world is too dependent on WhatsApp - and why Big Tech financial results are going down the drain. Our reporter visits a factory making a female crash test dummy - and we ask what next for the self-styled Chief Twit, Elon Musk, as he completes his purchase of Twitter.
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