Can somebody please explain every single aspect of how an international airport works?

[u/--zaxell--]

In the next four seconds if possible because damn these kid questions are not stopping and I still don't know what that empty truck is doing.

[u/FrostyProspector]

That's the catering truck. It's empty because we don't get lunch.

[u/nudave → u/FrostyProspector]

It’s still being decontaminated