You can opt out of airport face scans
Airports are rolling out facial recognition and body-scanning technologies, and travelers are split between accepting them for speed and convenience or resisting them on privacy, health, and civil-liberties grounds. Many note that “optional” face scans and scanner opt-outs often involve confusion, intimidation, or significant delay, raising doubts about how meaningful consent really is and whether such systems will quietly become mandatory. Others argue that governments already hold extensive biometric data and that the real issues are data security, mission creep, and how much pervasive surveillance a democratic society should normalize.
Opting Out in Practice
- Multiple users report successfully opting out of facial recognition and body scanners, but experiences vary widely.
- Some describe smooth alternatives (manual ID check, wanding, pat-down); others report arguments, shaming, long delays, or being told opt-out isn’t possible.
- Signage often states participation is optional, yet front-line staff frequently seem confused or untrained about opt-out procedures.
- Opting out of millimeter-wave scanners triggers manual pat-downs; some find them invasive or deliberately unpleasant.
- A few users say the hassle has driven them to give up resisting and just comply.
Radiation and Scanner Safety
- Clarification that current airport “cylindrical” machines are millimeter-wave, not X-ray; backscatter X-ray systems are said to be rare or phased out in major US airports, but still used in some European airports and prisons.
- Debate over cumulative radiation risk: some argue low, non-ionizing doses are negligible; others say all radiation exposure is additive and workplace limits exist for a reason.
- One commenter notes EU caution over millimeter-wave safety and highlights limited, vendor-funded studies.
Privacy, Biometrics, and Normalization
- Many object on principle: resistance to constant identification, tracking, and the erosion of anonymity in public.
- Concern that “they already have your photo” is a form of privacy nihilism; people want to slow the incremental (“salami slicing”/boiling frog) expansion of surveillance.
- Worries include high-resolution 3D face data, derivative biometric templates that may be retained even if images are “deleted,” and future misuse (deepfakes, biometric fraud).
- Non-citizens often cannot opt out and fear data leaks by border agencies; some avoid visiting the US entirely.
Effectiveness of Resistance
- One camp sees individual opt-outs and delaying lines as necessary civil disobedience and a moral duty.
- Another argues opt-outs are statistically insignificant, often not even tracked, and that meaningful change must come via law, regulation, and elections.
- Some note that marginalized or non-white travelers face higher risks if they resist, so relatively privileged travelers may have a special responsibility to push back.
Technical and Operational Notes
- Facial systems often use stereoscopic, close-range cameras; some boarding gates and Real ID processes also integrate face capture.
- Others point out ubiquitous cameras (street, stores, cars, doorbells) already feed large-scale facial recognition.
- Several prefer programs like TSA PreCheck/Global Entry for speed and to avoid body scanners, while distrusting private services like Clear, especially for how they monetize biometrics.