Licensed vocational nurse Caren Williams, left, collects a nasal swab sample from a traveler at a COVID-19 testing site at the Los Angeles International Airport in Los Angeles, Monday, Nov. 23, 2020. About 1 million Americans a day packed airports and planes over the weekend even as coronavirus deaths surged across the U.S. and public health experts begged people to stay home and avoid big Thanksgiving gatherings. (AP Photo/Jae C. Hong), APTOPIX