The dawn of digital "checkpoints" for government control
As noted, recognition tech is being taken up rapidly. It's only a matter of time before the government demands access to those scanners and data. ALL of them. Like Google, the spymasters believe its their right to know everything about everyone and store it forever. Soon facial recognition will be installed at shopping malls, train stations, sports venues, public buildings, anywhere a thin claim for preventive security can be made. Desire to recognize customers (for "rewards" of course, lol) will lead to most retail using it as well.
Think CCTV is invasive? It's usually mounted kinda high up, often providing imagery that lacks enough detail to ID people. Facial recognition will be at eye level and close, taking excellent shots of our faces. CCTV has a vague "watch for trouble" mission. Facial recognition has ONE purpose, to record and if possible identify everyone who passes it.
If you combine spying through your phone, home-automation setup, and public face recognition, you already have the effective elements of the Telescreen from "1984". With access to all these systems, the spymasters will watch and listen to us everywhere we go. It's worse actually, because Orwell didn't imagine huge searchable databases to store and serve up all that info.
All this tech was supposed to make our lives better, not bind us in digital shackles...