Now that the COVID-19 pandemic is finally over — we have President Joe Biden’s word on this — the Lancet Commission set up more than two years ago to investigate it has finally issued a report. It’s a huge disappointment as it dances around the key question of origins: “More than 2 years into the pandemic, the search for the origin of SARS-CoV-2 remains incomplete and inconclusive.” Its weak-sauce conclusion — maybe it came from a lab, maybe it came from nature — has given an opening to a China-led disinformation campaign that claims against all evidence the virus was...