A few month ago I watched a very good documentary, as far as I can remember: it started about the beginning of corona research about 20 years ago and how rights began to be patented.
Then, in 2013, the congress decided not to fund the research any more, but somehow it was transfered, I believe from a CDC lab, to the laboratory in Wuhan and still paid for. There was also an interview with a female Doctor, who got lots of trouble for revealing stuff. The guy who made the video studied all the official files about what was going on. I think, I found the video at https://www.greenmedinfo.com/ and I guess I saved it at youtube and it got erased. So I would be really happy, if someone knows what video I'm talking about, or if you know about a similar documentary.