Which method is commonly employed to verify passenger identity during security checks?

Checking government-issued photo identification is a fundamental method used to verify passenger identity during security checks. This approach ensures that officials can confirm a traveler's identity by comparing the information and image on the ID with the individual presenting it. Government-issued IDs are designed to be secure and include various security features that help prevent fraud or forgery.

While other methods like asking for personal information and using biometric scanners can assist in identity verification, they may not be as reliable on their own. Personal information can be less secure, as it relies on the accuracy of the passenger's memory and honesty. Biometric fingerprint scanners, while advanced and effective, may not be universally available at all checkpoints. Conducting random background checks is a broader measure and may not directly facilitate identity verification at the time of boarding.

Thus, the use of government-issued photo identification remains the primary standard in passenger identity verification, promoting security and safety in air travel.