Originally Posted by
42psi
It's not a security incident as such as all passengers had been security screened to the same standard.
Yes it is. The only common factor is that all passengers, and their baggage, have been found to be free from weapons and hazards to flight.
In many cases the airlines have an obligation to ensure that passengers are compliant with the immigration requirements of the destination; in the form of visas, health certification and so forth. And what is the upshot when the Opposition-Leader-in-Exile of the pariah-state Ruritania, inadvertently boards a flight to; Ruritania.