The government has set a deadline of June 2024 for most UK airports to install new high-tech 3D scanners, that show more detailed images of baggage.The changes will see the 100ml liquid rule increased to two litres and mean passengers won't need to remove electrical items from bags at security.The limits have been in place since November 2006 and their introduction marked the end of a ban on liquids in the cabin imposed three months earlier, when British police said they had foiled a plot to blow up as many as 10 planes using explosives hidden in drinks bottles.The government said its requirement for airports to upgrade screening equipment to the type similar to CT scanners used in hospitals, will mean eventually the rules on electrical items can be lifted and the liquid limit can be extended to two litres.Christopher Snelling, policy director at the Airport Operators Association, which represents UK airports, added the investment was a "great step forward for UK air travel, matching the best in class around the world"."