Spy chiefs “silenced” researchers in the Defense Department and FBI who discovered strong evidence that COVID-19 most likely leaked from a Chinese lab, The Post has learned. As a result, their findings were kept out of an August 2021 report to President Biden on the origins of the global pandemic. That report concluded that the virus behind COVID “was probably not genetically engineered.” After the pandemic erupted in Wuhan, China, three scientists from the Defense Intelligence Agency began trying to figure out exactly where it came from — whether SARS-CoV-2 jumped from bats into humans, or whether the virus was...