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DEEPFAKES, VIDEOS DOCTORED BY AI to appear real when they’re not, have been around for years. But they hit the headlines around 2018 when it became possible to create them on modest systems with readily available software. There was something of a panic as it became clear that our world of digital imagery was forever untrustworthy. Editing images is as old as the invention of photography, but deepfakes made realistic videos a reality. At their simplest, deepfakes work by mapping an AI-manipulated face over the movements and expressions of an actor to alter an original clip.