Travelers have to face a new reality—their faces are rapidly becoming their IDs and boarding passes at airports.
Facial recognition is rolling out at boarding gates for international flights at big airports in Europe, Asia and the U.S., even as privacy concerns about the technology grow.
JetBlue is doing it in New York; Delta in Atlanta, Minneapolis and Salt Lake City, with the rest of its hubs added by the end of 2019. International airlines from new entrants like Norwegian to old hands like Air France also are scanning faces to board airplanes in the U.S.