three suspicious events that took place at the Wuhan lab

Dr. Robert Redfield, the former CDC Director, talks about three suspicious events that took place at the Wuhan lab in September 2019:

"In Sept. 2019, three things happened in that lab. One is they deleted the sequences. Highly irregular, researchers don't like to do that. The second thing is they changed the command and control from civilian to military. Highly unusual. The third, which is very telling, is they let a contractor redo the ventilation system in that laboratory. Clearly, there was strong evidence that a significant event happened in that laboratory in September