YouTube video by The Better Driver Project

katie austintraffic correspondent Getty Images Heathrow Airport, the UK's biggest airport, has finally completed the installation of a new high-tech CT scanner, allowing passengers to carry up to two liters of liquid in containers while going through security in their bags. Electronic devices such as laptops can also be kept in luggage, eliminating the need to use clear plastic bags for liquids. Heathrow Airport says it is now the world's largest airport, with all terminals fully equipped with new equipment. but Although it has become the biggest airport to introduce the new high-tech scanner, it is far from the first in the UK, as Gatwick, Edinburgh and Birmingham airports have all been upgraded in recent years, increasing the limit to two liters.