If we had legitimate evidence that we could hold against them, this might make sense. But if you're referring to the outcome of the DOE investigation, the outcome provided no actionable evidence. It's the 'best guess theory' based on investigation by the DOE. The rest of the Intelligence community has differing views on this, and no one has the evidence we'd need to credibly pursue remunerations.

And no way would China pay it. And no way would anyone lift a finger to make them pay it. The best thing we can do is work overtime to install Intelligence assets in China's scientific community to better monitor what's going on so we can prepare for or avert stuff like this. They do the same to us, only we have proven that we have far more effective safety measures and systems to keep our public safe at the scale we're discussing. And they have shown (not just with COVID-19), they can't be trusted with a lot of this shit. The majority of epidemics/pandemics in recent times (human and non-human) have come from them and their inability to manage public and livestock health, as well as dangerous research containment. So we just do the best we can to stay apprised/invested in those activities, and we plan courses of action/response if needed when we smell danger.