Originally Posted by
Spiff
No, it wouldn't. Any country with common sense would dismiss it as a one-off and let it go.
Well, no. Any country with common sense would evaluate the risk on the spot and act accordingly. The point is that the UK and US have given away common sense for the most part. If there was an identified risk you might do a terminal dump. Or you might track the movements through the airport of the identified risk and simply follow up individually with them and anyone they appear to interact with. Or you might do gate checks for the next two hours. Or six hours. Or whatever. Or you might do nothing because you assess there is no increased risk. All sorts of things you might do.