A significant shift in U.S. border security rules quietly took effect on 26 December 2025, reshaping how non-U.S. citizens are processed at airport entry and departure points and raising major implications for holiday and year-round travel. What’s been widely dubbed the “DNA law” isn’t science fiction — it’s part of a broader move toward expanded biometric screening that now includes facial recognition, fingerprints, and in some cases, DNA collection for non-citizen travellers.
What the Law Actually Does
At its core, the new rule modernises and extends the U.S. biometric entry-exit regime that has been under development for decades. These are the biggest changes travellers should understand:
- Facial recognition at all ages: The U.S. no longer maintains broad age exemptions; all non-citizen travellers, including children under 14 and seniors over 79, may have their photos captured and stored for identity matching.
- Expanded fingerprints: Fingerprints, already a routine part of immigration processing, now play a larger role in confirming identity at checkpoints.
- DNA collection authority: In limited circumstances — such as when additional verification is needed or there are concerns about fraud or immigration status — Customs and Border Protection (CBP) officers may request DNA samples from non-citizens. This is not expected to be routine for every traveller but the authority now exists.
- Long-term data retention: Biometric data, particularly facial imagery for non-citizens, can be stored in government systems for years or even decades.
- Fees and fines: People staying in the U.S. for longer visits (e.g., more than 29 days) may also face additional fees and potentially financial penalties if they refuse biometric or identity checks.
All this comes as part of a sweeping effort by the Department of Homeland Security to build a more robust and comprehensive border identity system — one that links physical presence with digital identity checks from departure to arrival.
What This Looks Like at the Airport
For most travellers arriving or departing through major hubs like New York, Los Angeles, Miami, or Atlanta, the new system will feel like:
- More cameras and kiosks at passport control and boarding gates.
- Explicit facial scans that replace or supplement traditional document checks.
- Instructions to face a camera for automated identity verification.
- Possible fingerprinting if asked by an officer.
- DNA swabs only in selected or high-risk cases, not as a universal step for holiday travellers.
In the short term, this means longer processing lines are possible as officers and passengers adjust to new procedures, especially during peak travel seasons like Christmas, New Year, and spring breaks.
Some airports already use automated biometric boarding systems where facial recognition can rapidly replace boarding pass scans for certain flights — a step the industry hopes will ultimately speed up travel.
Who Is Affected and Who Is Not
The rule primarily applies to non-U.S. citizens — foreign travellers entering or leaving the United States. U.S. citizens may also have images captured by airport systems for brief processing (e.g., boarding gates), but these are generally not stored long-term under the new policy.
Certain visa categories, diplomats, or travellers with special agreements may be subject to different procedures under existing treaties.
Why This Is Happening Now
This policy shift is the culmination of a decades-old mandate to modernise the U.S. entry-exit tracking system — originally conceived in the late 1990s. Homeland security officials argue that automated biometric confirmation closes loopholes exploited by fraud, identity theft, and overstays, and that facial recognition provides a rapid, contactless way to check identity against official documents.
Political pressures to enhance border security and better track lawful versus unlawful presence have also accelerated these changes in recent years.
Concerns and Criticisms
Civil liberties groups, privacy advocates, and some lawmakers warn that:
- Facial recognition systems can perform unevenly across demographics, potentially leading to more false matches and secondary screenings for minority travellers.
- DNA authority could normalise genetic surveillance at borders.
- Long data retention windows create expansive government databases that could intersect with law enforcement and intelligence systems.
Beyond airports, historic practices have shown that federal agencies have already collected genetic material in immigration and other enforcement contexts, sometimes without public oversight.
How to Prepare for Travel Now
If you plan to transit through the United States:
- Arrive early at the airport to allow extra time for biometric checks.
- Be prepared for photos and possible fingerprinting at border control booths or automated gates.
- Ensure passport validity and legibility to support smooth biometric matching.
- Follow officer instructions closely to avoid delays.
- Consider consulting legal advice if you have a complex immigration history.
Original Article: The Sun
Join the Conversation
Do you see expanded biometric screening as a necessary trade-off for security, or a quiet step toward permanent surveillance? How comfortable are you with facial recognition and potential DNA collection becoming normalised parts of international travel? Share your experiences and insights below.

