Biometric airport?
I'll be flying LHR-SLC-SEA on Delta soon. Will be my first time in the SLC airport. Part of a Delta email talks about how SLC is a biometric airport and how that will improve my experience at SLC. I've never experienced that and was curious how it works.
1) What I read online implies it is only for international flights departing from the biometric airport, not arriving. Is that true?
2) Assuming it does apply, how would my experience be different than the usual experience connecting from between the LHR-SLC to SLC-SEA flights?
Thanks!