Science has learned that Morens, an influenza researcher who worked at the U.S. National Institute of Allergy and Infectious Diseases (NIAID) until 2022 and was an aide to its former director, Anthony Fauci, was having his morning coffee at his Chester, Maryland, home when he heard loud pounding on the door. He opened it to find a half-dozen federal agents carrying guns and wearing tactical gear, including bulletproof vests, according to two sources who spoke with him but asked not to be identified. Another team of officers stood in the distance and observed, as did neighbors. The agents did not...