What just happened? Meta says it has taken down thousands of fake accounts that were part of a massive disinformation campaign linked to Chinese law enforcement. While the deleted accounts were on Facebook and Instagram, the network is also present on non-Meta platforms including Reddit and YouTube, spreading positive posts about China and negative comments about the US. Meta's security researchers described the campaign as the "largest known cross-platform covert influence operation in the world." The company took down 7,704 Facebook accounts, 954 Pages, 15 Groups, and 15 Instagram accounts. Ben Nimmo, Meta's global threat intelligence lead, said the accounts…