That may be a neat concept for a science fiction novel, but it seems more likely that someone at the Wuhan BSL4 was working with coronaviruses (as they do) and

That may be a neat concept for a science fiction novel, but it seems more likely that someone at the Wuhan BSL4 was working with coronaviruses (as they do) and somehow contracted the virus themselves. They may have been working with lab animals, such as bats. The virus didn’t have to come with a sinister intention. Looking at this another way, until today, the most common hypothesis was that the virus crossed into humans because of contact with wild animals. A lab leak probably also involved contact with wild animals. It’s just now the Energy Dept. has gotten their hands on intelligence supporting this notion in particular.