Soon you’ll be able to check into flights with a fingerprint — but should you?

Would you be comfortable giving an airline your fingerprint?

The headache of traveling by air could soon see a slight improvement with the introduction of biometric technology, allowing travelers to check in with the touch of a finger or a face scan. However, security experts warn that saving a few seconds on the way to your flight may not be worth the potential security risks.

Delta Air Lines DAL, +1.02% and JetBlue JBLU, +0.70% are both testing biometrics at airports to replace the traditional check in and boarding processes. “We’re rapidly moving toward a day when your fingerprint, iris or face will become the only I.D.

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