Given that you already need government issued ID that matches the name printed on your ticket to travel on an airplane, wouldn’t the government already have the ability to track you, regardless of facial recognition?
Comparing an ephemeral photo taken of you to your government credential at the TSA checkpoint is a temporary formality. At some point, the government credential presentation will be unnecessary.
https://www.cbp.gov/travel/clearing-cbp/passenger-name-recor... (Control-F "What information is collected?")