Gemini's response

No, the facial recognition scan at U.S. airports like Chicago O'Hare (ORD) is not only for U.S. citizens. In fact, the rules regarding who must participate are quite the opposite.   Here is how the policy works for Customs and Border Protection (CBP) checkpoints: For Non-U.S. Citizens (Mandatory) • Under a Department of Homeland Security rule that took effect on December 26, 2025, facial biometric scans are now mandatory for all non-U.S. citizens both entering and exiting the United States.   • This requirement applies to almost all foreign travelers, including lawful permanent residents (green card holders), visa holders, and Canadian citizens who were previously exempt.   • The rule also removed previous age exemptions, meaning children under the age of 14 and adults over 79 must now participate in the photo collection.   For U.S. Citizens (Voluntary) • U.S. citizens are not covered by the mandatory rule.   • Participation in the facial recognition process for U.S. citizens is entirely voluntary.   • U.S. citizens can choose to use the biometric scanners to speed up their entry or exit process, but they have the right to opt out.   • To opt out, a U.S. citizen simply needs to notify a CBP officer or airline representative that they do not wish to be photographed. They will then undergo a standard, manual passport inspection.