The passenger steps into a machine where he or she is quickly scanned with radio waves.

CNN: TSA trying new airline passenger screening machines

When a passenger steps forward to get on a flight, an agent could hold up the boarding pass and passport in front of their smart glasses, scanning barcodes on the two documents simultaneously.

BBC: Could Google Glass ease air travel?

Under new TSA guidelines, they point out, the person looking at the scanned image is in an entirely separate room, and the picture is deleted as soon as the next passenger steps into the scanner.

WSJ: Noah Shachtman: Has Airport Security Gone Too Far?

Obama said courageous actions by other passengers and crew members helped avert a disaster, and he outlined steps including reviews of passenger screening procedures and terrorism watch lists for air travel as a response.

CNN: Obama vows to 'keep up the pressure' on terrorists

The inquiry commission recommended the city take various steps to enhance future passenger safety, including requiring regular eye exams for captains, sufficient life-jacket provisions and better instructions for passengers on where to locate onboard life jackets.

WSJ: Hong Kong Ferry Crash Report Blasts Official Failures

And in the days ahead, I will announce further steps to disrupt attacks, including better integration of information and enhanced passenger screening for air travel.

WHITEHOUSE: President Obama Speaks to the Press After Security Meeting