New carry on rules! Last week Heathrow, one of the world's biggest airports, rolled out new luggage scanning technology which means several things: shorter security queues, no more toiletries in little plastic bags, Where To Smoke Inside London Heathrow Airport Live and Let's Fly The view from my cage, I found the elusive and completely unsigned smoking area at terminal 2, Heathrow Airport Edit this group is called View from my Window, not Opinions from your Going through security at Heathrow Here's what to expect when travelling through our terminals: Leave large electricals and liquids in bags. Empty liquids in metal or double walled containers.