X-ray machines.
Hi there,
In the last few months I have accidentally carried my large Swiss army knife onto a flight in my hand luggage; both times I hadn't actually realised what I'd done until I was unpacking (first time it was in my washing bag, and the second time I checked the bag through as hand luggage instead of putting it in the hold). I was flying from Birmingham airport both times, and on reflection was surprised that the knife was missed as they have a large see through container full of confiscated nail clippers and the like which are all quite small. So what happened, aside from the operator just not noticing?