What is ‘Milkshake Duck’?

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"Milkshake Duck" is internet slang for an ordinary person who is briefly cheered, but then swiftly turned upon. We explain why the family of an 11-year-old boy is the latest example of the phenomenon. And where did the idea come from in the first place? Also, BBC Brasil investigation has revealed that an army of so-called social media cyborgs tried to influence the country’s presidential election. BBC Brasil’s editor Silvia Salek has the lowdown. And, a new chapter in the Harry Potter story - as written by robots. Presenter: Jonathan Griffin Producer: Will Yates Caption: A picture of a duck / Credit:Getty Images