If Covid-19 Did Start With a Lab Leak, Would We Ever Know?

“We find ourselves ten months into one of the most catastrophic global health events of our lifetime,” wrote Stanford University immunologist and bio-threat expert David Relman in November, “and, disturbingly, we still do not know how it began.” That lingering uncertainty is of the utmost importance: The precise origins of the SARS-CoV-2 outbreak, once resolved, […]