From back in Jan, but man, the optics on this don't look good.

https://www.cnn.com/2020/01/28/politics/harvard-professor-chinese-nationals-arrest-espionage/index.html

Dr. Charles Lieber, 60, who is the chair of Harvard's Chemistry and Chemical Biology Department, is accused of lying about working with several Chinese organizations, where he collected hundreds of thousands of dollars from Chinese entities, US Attorney Andrew Lelling said at a news conference.
According to court documents, Lieber's research group at Harvard had received over $15 million in funding from the National Institutes of Health and the Department of Defense, which requires disclosing foreign financial conflicts of interests.
The complaint alleges that Lieber had lied about his affiliation with the Wuhan University of Technology (WUT) in China and a contract he had with a Chinese talent recruitment plan to attract high-level scientists to the country.

Some people are floating the idea that COVID-19 was "accidentally" released in retaliation.

Conspiracy theorists - talk among yourselves. :D

I feel like this falls under Hanlon’s razor.

This is old news. He also worked with nano technology, not biology. He got arrested because he didn't report where the funding was coming from, not because of what research he was doing.