What common method is used for passenger screening at airports?

The choice of body scans as a common method for passenger screening at airports is rooted in their effectiveness at detecting concealed items, including weapons or explosives, that may not be picked up by traditional screening methods. Body scanners employ advanced imaging technology that creates a 3D image of the passenger, allowing security personnel to identify potential threats without physically touching the individual. This non-invasive method enhances security while maintaining passenger comfort.

While temperature checks have gained prominence in response to health concerns, such as during the COVID-19 pandemic, they primarily serve to identify fever rather than preventing threats like weapons. Verbal interviews are more subjective and may not reliably detect hidden dangers compared to technological aids. Metal detectors are indeed widely used as well but are more effective for identifying metallic objects; they do not provide the same level of comprehensive threat detection that body scans offer. Therefore, body scans have become a crucial component of modern airport security protocols, balancing efficacy and passenger experience during screening processes.