I opted out at Boston International Airport. It involved arguing with the TSA for about 5 minutes while holding up a 150 person line. Then the supervisor came over, told me that I "was required to have to have my photo taken" and opting out consisted of checking a box in the software to not save my photo. My alternative was to not get on the flight.
The whole idea of opting out is a scam. They are 100% planning to force mandatory facial recognition on the general public.
The whole idea of opting out is a scam. They are 100% planning to force mandatory facial recognition on the general public.