Mia Sato is features writer with five years of experience covering the companies that shape technology and the people who use their tools. YouTube is expanding its AI deepfake monitoring feature to Hollywood — meaning some celebrity AI videos could soon disappear. The platform’s likeness detection feature searches YouTube for AI deepfake content and flags it for public figures enrolled in the program. Public figures can use it to keep track of AI content on YouTube of themselves or request removal (takedowns are evaluated against YouTube’s privacy policy , and not every request will be approved). YouTube began testing the feature with content creators last fall; in March, the company expanded the program to politicians and journalists. YouTube says the tool will cover celebrities regardless of whether they have a YouTube account. The system requires participants to submit an ID and a selfie video of themselves.…