Yes, it is suspicious not to let an independent committee audit the lab, and to disallow access to all information related to it. I'm not going to deny that. It

Yes, it is suspicious not to let an independent committee audit the lab, and to disallow access to all information related to it. I'm not going to deny that. It also doesn't make it a cold hard proof. But I do know that pissing of China at the start of a pandemic isn't a good way to help the world mitigate the pandemic either. You need international collaboration and for everyone to work together and relay what they learn of the virus and its transmission and all that. At my work, we have policies similar where in the case of a production event, you don't blame the dev who released the bad code or made the faulty change, because doing so creates an atmosphere that doesn't help with root causing and fixing the issue.