You can look up Trump’s China Initiative, it’s technically “ended” but seeing as they have arrested researchers since I think it’s “ended” in the way Biden has ended other trump programs. I’m on my phone, but here are some things to look at:
https://www.newyorker.com/magazine/2022/03/21/have-chinese-spies-infiltrated-american-campuses
Keep in mind months after this article was published, Tao’s case was determined to not be “espionage”. Here is his wiki: https://en.m.wikipedia.org/wiki/Feng_“Franklin”_Tao
Here is another example: https://www.nbcnews.com/news/asian-america/wrongfully-accused-spying-china-professor-wins-appeal-sue-government-rcna86109
You can google related terms and find other examples. Some more dubious than others.
No problem, yeah, every once in a while there is another researcher who is claimed to be a “Chinese Spy”, though it has seemingly slowed down after multiple cases turned out false. Just another part of the latest red scare.