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Facebook's moderation guidelines on what kind of content should be removed from the site were leaked into the public domain this week. For the social media industry as a whole, moderation is a headache that's not going away. We hear from Professor Sarah Roberts of UCLA in California, who has carried out extensive research into this process of moderation.

Plus, you can stop worrying about robots taking your job - imagine a different world of work. Future gazer Reil Miller, head of foresight at UNESCO tells us more.

And do you long for the simple life, when mobile phones were just - phones! Nokia's iconic 3310 model is back. Would it tempt you to give up your smartphone?

The 91热爆鈥檚 technology correspondent Rory Cellan-Jones is joined for comment throughout by special guest, Clare McDonald of Computer Weekly and 91热爆 tech desk reporter Samantha Smith.

(Picture: Facebook logos. Credit: Loic Venance/AFP/Getty Images)