Nano needles. Facial recognition. Air travel adapts to make travel safer

Health screenings might become part of the touchless airport experience, too. Most people have seen images of passengers getting their temps taken with handheld thermometer wands at gates or security checkpoints. But increasingly, airports are opting for (or testing out) walk-through thermal-screening cameras, which operate by detecting heat emanating from a person's body and then estimating its core temperature. The idea with both devices is to detect people with fevers who might be infected with COVID-19. Airlines have asked the U.S. government for temperature screenings at airports to keep passengers safer and make them more confident about flying.