It has everything to do with the batteries and airport scanners.
Prior to the tragic events of September 11th, airport security allowed passengers to pass through with bags containing everything one might need for a holiday, including knives, liquids, and various electronic devices. But since the 9/11 terrorist attacks, there have been changes to airport security regulations in order to avoid self-made explosives.
Photo: Jaromir Chalabala/Shutterstock
Having a laptop inside a bag can also block the view of other items that could be potentially dangerous. Scanning it separately allows the security personnel to see its internal components clearly on the screen. In certain situations, you might be requested to turn on the laptop to demonstrate that it is functional.
These advanced scanners can effectively determine whether something is being concealed, eliminating the need for a separate electronics or liquids check. According to Smiths Detection, which specializes in threat detection and security screening technologies, the tech not only eliminates the need for removing electronic devices but also reduces the rate of tray handling, significantly trimming the screening time per passenger. Now, you’ll only have to remove any items if your bag is flagged by the scanner.
The new security scanners have been instrumental in reducing queues at many airports, which were a significant issue during the post-pandemic period when most airports faced understaffing challenges.
Source: Simple Flying