- Opening the records about which viruses the WIV was storing. It's not a mystery — labs track that kind of thing! But China refused to release any data about which viruses the WIV stored or modified.
- Finding a clear chain of infection between a natural source and the outbreak in Wuhan
- Finding clear evidence that there was a small outbreak which later spread to Wuhan
- Opening the records about which viruses the WIV was storing. It's not a mystery — labs track that kind of thing! But China refused to release any data about which viruses the WIV stored or modified.
- Finding a clear chain of infection between a natural source and the outbreak in Wuhan
- Finding clear evidence that there was a small outbreak which later spread to Wuhan
Nobody has managed any of those.