The source of COVID is likely China’s $60 billion dollar+ fur industry, and that is the reason they don’t want anyone looking. I’d bet if they did analysis, ancestors of COVID are found in the bats in Suning County, which is fairly close to Wuhan and one of the largest fur markets on the planet. The raccoon dogs that were sold at the market in Wuhan were likely animals with poor fur coats (because they were sick) and sent to butcher rather than being skinned for their fur. China’s fur industry requires vast tracts of land clearance since one of the primary furs, which is mink are obligate carnivores, so they need a supply of meat. The land clearance forces the horseshoe bats to roost in the barns with the animals that include minks and raccoon dogs. It explains every aspect of that the lab leak theory fails to address, with the two lineages, the genetic clock starting in October, and even why it spilled over to people in the time period that it did

The headline says "fact-finding mission to China" though.