Your biometric info will serve as both proof of identification and boarding pass, so it can, in theory, lead to shorter lines and much speedier check-in. For the proof-of-concept test, though, participants still have to show their identification documents, boarding passes and tickets, since its purpose is to assess how accurate the biometric system is.

TSA Acting Assistant Administrator Steve Karoly said in a statement:

"TSA looks at technologies and intelligence capabilities that allow us to analyze and secure the travel environment, passengers and their property. Through these and other technology demonstrations, we are looking to reinvent and enhance security effectiveness to meet the evolving threat and ensure that passengers get to their destinations safely."

Haven't provided the agency your fingerprint yet, but you're willing to trust them with your info for the chance to test the new system out? You can still volunteer your fingerprint using its PreCheck lanes at the airport. If we're lucky, it could change the way airport security works in the US.