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The reputations of Silicon Valley tech firms took a hit in 2017. Will 2018 be any better? Rory Cellan-Jones speaks to Frank Foer, author of World Without Mind: The Existential Threat of Big Tech. And will 2018 be another bumper year for cryptocurrencies? We hear from Brad Garlinghouse, chief executive of Ripple - the company behind one surging Bitcoin rival - and David Gerard, a blockchain sceptic. The 麻豆官网首页入口's Leo Kelion looks ahead to CES - the world's biggest tech conference taking place in Las Vegas next week. And Jane Wakefield is also in the studio to talk about the computer bug affecting almost the entire computer market.

(Photo: An employee's laptop at Facebook's new headquarters in London, Credit: Getty Images)