EditorialDr. Erik Musiek, who sees Alzheimer's patients at the memory clinic at Washington University School of Medicine, stands for a portrait in front of a PET/CT scanner used to identify plaques in the brain on May 20, 2021, at the university in St. Louis. (Nick Schnelle/The New York Times)
EditorialA thermal temperature scanner in the lobby of the Graybar Building — home to SL Green headquarters — in Manhattan on Sept. 18, 2020. (James Estrin/The New York Times)
EditorialA non-contact body temperature scanner at the entrance to President Donald Trump's campaign rally at the BOK Center in Tulsa, Okla., on Saturday, June 20, 2020. (Erin Schaff/The New York Times)
EditorialA scanner checks the temperatures of patrons visiting the Museum of Fine Arts, Houston, reopened for the first time during the coronavirus pandemic, Saturday, May 23, 2020. (Todd Spoth/The New York Times)
EditorialAn employee is screened by a thermal temperature scanner as he arrives for work at Patagonia’s distribution center in Reno, Nev., which resumed limited operations last month, on April 24, 2020. (Max Whittaker/The New York Times)