Why Do Laptops Need To Be Removed From Hand Luggage At Airport Security?

When passing through airport security, travelers are often required to remove their laptops from their hand luggage and place them separately in security scanner bins. This practice, although becoming less common with the advent of new scanner technology, remains a standard procedure at many airports. The necessity of this rule is primarily due to the density of laptop batteries and components, which can obstruct X-ray scans, and security concerns post-9/11.

Historical Context and Security Measures

Before the 9/11 terrorist attacks, airport security was more lenient, allowing passengers to carry a variety of items in their hand luggage, including knives, liquids, and electronic devices. However, in response to the attacks, stringent security regulations were introduced to prevent the smuggling of explosive materials. This includes restrictions on liquids and the mandatory screening of electronic devices such as laptops.

The Technical Explanation

The key reasons for removing laptops from hand luggage at security checkpoints are:

1. Battery Density: The dense batteries and mechanical components of laptops make it difficult for X-rays to penetrate effectively, especially with older scanning systems. This limitation also applies to other devices like power cords, tablets, and cameras.
2. Obstruction of View: A laptop inside a bag can shield other potentially dangerous items from view. Scanning the laptop separately allows security personnel to inspect its internal components clearly.
3. Functional Demonstration: In certain cases, passengers might be asked to turn on their laptops to prove they are functional and not concealing hazardous materials.

According to the Federal Aviation Administration (FAA), "most consumer personal electronic devices containing batteries are allowed in carry-on and checked baggage." However, the FAA also emphasizes the potential hazards of lithium-ion batteries, which are highly flammable and can overheat. Passengers are advised to notify flight crew immediately if their devices show signs of overheating or malfunctioning.

Next-Gen Scanners and the Future

Advancements in scanning technology are gradually reducing the inconvenience of removing laptops during security checks. Newer scanners, such as those utilizing Computed Tomography (CT) and Automated Screening Lanes (ASLs), provide detailed views of carry-on luggage from multiple angles. These advanced systems can detect concealed items without requiring separate screening of electronics or liquids.

Several airports, including Milan Linate (LIN), Amsterdam Schiphol (AMS), Rome Fiumicino (FCO), London City (LCY), and Eindhoven (EIN), have already implemented these next-gen scanners. These technologies streamline the security process, reducing the need for tray handling and minimizing passenger screening time. As more airports adopt these advanced scanners, the requirement to remove laptops from hand luggage will become a thing of the past.

In conclusion, while the current practice of removing laptops for separate screening may be an inconvenience, it is a necessary measure to ensure security and safety. However, with ongoing technological advancements, the future promises a more seamless and efficient airport security experience.