Now, two big airports in Europe are getting new security scanners that can better detect threats. These scanners use 3D technology.

The US is also adding these new scanners to its airports, but it may take some time to change the rules about liquids. Only some airports have the new scanners so far.

The US plans to have all its airports equipped with the new scanners by 2043.

An airport in Belgium will start using the new scanners in 2028. The scanners will replace old X-ray machines and screen passengers and their bags.

With the new scanners, travelers can bring as many liquids as they want, as long as each container is not too big. The EU currently has strict rules about liquids in carry-on bags.

The new scanners can also look at laptops and other items from different angles, so travelers won't have to take them out of their bags. The scanners use special algorithms to make 3D models of bags.

The new scanners will make the security process faster and easier.

The CEO of Brussels Airport said the new scanners will make security checks smoother and easier for passengers. The airport will also be able to handle more passengers in the future.

Another big airport in Europe, Heathrow, already has the new scanners and has changed its rules about liquids.

This is a new development in airport security.