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They decide what you can and cannot see on the world’s biggest social network. Who are Facebook’s content moderators? We speak to a woman who worked in a moderation centre in Germany, often watching violent and pornographic videos and deciding what posts should be deleted. New figures reveal that same-sex divorce rates are higher among women than among men. Tim Harford discusses why this may be with Marina Ashdade, economist at the Vancouver School of Economics and author of Dirty Money, a book about the economics of sex and love. In the age of non-stop tweets, news updates and digital distractions, Sandra Kanthal finds out why, in the age of the 280 character polemic, it could be useful to rediscover the ancient art of rhetoric. (Photo: Close up of an eye. Credit: Getty Images)