https://www.cnet.com/news/delta-will-scan-faces-at-the-airport-with-new-biometric-terminal/

Facial recognition saves up to nine minutes per flight, based on initial testing, Delta said. The company partnered with US Customs and Border Protection, Hartsfield-Jackson Atlanta International Airport and the Transportation Security Administration for the project.

Here's how the process works: passengers enter their passport information when they check into their flight online. Once they're at the kiosk in the airport lobby, they click "Look." They can also walk up to the camera at the counter in the lobby, the TSA checkpoint or when they're boarding at the gate. Once a green check mark appears on the screen, they're good to go.