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A flurry of scare stories about children being put in danger by the ‘Momo Challenge’ has spread online – but fact checkers say it’s a hoax. Momo, a character with bulging eyes, has been supposedly setting children challenges that encourages them to self-harm.

What does this latest viral panic tell us about fears about online safety and fake news? In the studio, Emily Maitlis is joined by journalist Amelia Tait and Mumsnet's Rowan Davies.