When a passenger steps forward to get on a flight, an agent could hold up theboardingpass and passport in front of their smart glasses, scanning barcodes on the two documents simultaneously.
The International Air Transport Association, a worldwide travel industry group, is working on measures that will allow passengers to get their boarding passes using fingerprint or retinal scans and then pass through the checkpoint.
But Precheck travelers actually don't know if they will get to use the easy screening until the TSA officer checking IDs actually scans theboardingpass.