"The Wuhan lab director published studies about manipulating bat coronaviruses in a way that could make them more infectious to humans, and there were reports of lax safety standards at the lab.

Matt Pottinger: They were doing research specifically on coronaviruses that attach to the ACE2 receptors in human lungs just like the COVID-19 virus."

What happened in Wuhan? Why questions still linger on the origin of the coronavirus - 60 Minutes - CBS News
https://www.cbsnews.com/news/covid-19-wuhan-origins-60-minutes-2021-03-28/