underscoring comment by crazyfingers: the last paragraph of this well-researched article - https://thenationalpulse.com/news/twitter-hires-ccp-fei-fei-li/

In a recent article for the Spectator, U.S. author and publisher Roger Kimball noted: “There are nearly 400,000 Chinese students in American universities. Thanks to Article 7 of the Chinese National Intelligence Law of 2017, each of these students is required to ‘support, assist and cooperate with state intelligence work according to law’. In other words, the United States is home to some 400,000 potential spies from China.”