TSA uses millimeter wave advanced imaging technology and walk-through metal detectors to screen passengers. Millimeter wave advanced imaging technology safely screens passengers without physical contact for metallic and non-metallic threats, including weapons and explosives, which may be concealed under clothing.

How does TSA PreCheck work?

TSA PreCheck verifies which passengers are present the lowest risk to flight security, so these passengers can pass through security checkpoints without the need to remove shoes, belts, or jackets from their person or laptops and liquids from their bags. ...

Do I have to take my shoes off at airport security 2020?

You don't have to take off your shoes to pass through airport security, the U.S. Transportation Security Administration says. ... And you might have to remove your Manolos anyway, if they trigger the sensitive metal detector or if you're selected for "secondary screening" -- the TSA sobriquet for a personal inspection.