they have a copy of a static image that they likely already have access to. very different to a high res alternate image, from a different angle, with a different expression, in different lighting
It's only static if they aren't using AI to analyze the tons of images they have of you from security cameras etc. Google Photos can learn and search for faces of a person based on one confirmed face a person. I'm sure Facebook can as well. There's no reason to believe the Government or TSA is or isn't doing this.