Is Airport Security Effective? | The Scientific Breakdown

The video explains the science behind airport security, detailing how X-ray scanners detect objects in bags based on density, and how personal scanners like metal detectors and millimeter wave scanners work. It also covers the use of Explosives Trace Detection machines to identify traces of explosives. The video aims to demystify the security process, highlighting the low radiation exposure and the technology's focus on safety.

What are the differences between backscatter X-ray scanners and millimeter wave scanners?

What happens to the swab taken during security checks?