I wondered how long it would be before fake versions of videos of news topics would start to appear. Sleazy Mr Trump has managed the first campaigning one, with that video of Nancy Pelosi stuttering her way through an interview. "I didn't know it was fake," declaimed Trump (or some such tosh). There's a cheerful explanation of how to do it below. The banjo accompaniment heightens the sense that it's all fine and dandy playing around with this technology.