When I fly back from Argentina, I always get "randomly selected" (I must be super lucky), for an additional screening at the gate.
So, I go through security, sit at the gate, then someone goes through my carry on in detail, swabbing everything and running it through a machine.
Anyway, twice I had the flight attendants calling my name over speakers, while I was literally standing next to them telling them "I am right here, but your friend is swabbing everything I own".
by the third time I learned and made sure I was in front of the line.
I don't know why I am always selected when leaving Argentina, it is very strange. I am not associated with any criminals, I don't go down there to hunt, I always have a 2 way ticket ...
But it is clearly not "random".
Maybe it is because I am a gun owner?
But I can't be the only one in an airplane with like 300 peoppe.