They do inspect bags at security and can ask to look inside any bag you have but in several decades of travel I've never had security anywhere ask to completely empty a bag. In my experience if they see something suspicious on the x-ray typically they'll just dig around in it. They won't take everything out.

Standard security procedures in 2026 do not usually require a "full bag empty" for every passenger, but targeted inspections are very common. When your carry-on passes through the X-ray or CT scanner, security officers look for "anomalies" or cluttered items that block their view of the bag's contents. If they see something suspicious—like a dense electronics cluster, a large volume of powder, or a bottle of liquid—they will pull the bag aside for a manual search. During this search, the officer will typically remove only the item in question and perhaps the items surrounding it to clear the "clutter." However, if you are selected for Secondary Security Screening Selection (SSSS), your bag may be completely emptied, swabbed for explosives, and every item inspected. To avoid a manual bag search, travelers are advised to follow the "3-1-1" rule for liquids and to place large electronics (like laptops and tablets) in separate bins if the airport is not using the newest 3D CT scanners, which allow you to leave everything inside the bag.