You are safe until you arrive in arrivals.
See all those people waiting? Some have cards with names on. Some wear chauffeur type uniforms and others look like excited friends and relations.
One of them has a knife and without warning will start stabbing you whilst shouting "God is Great" over and over.
He doesn't care that a security person will shoot him dead within seconds, he's booked his stairway to heaven and more flange than he can imagine.
So go with the flow in secure areas, smile and nod and do as you are told. Then take a deep breath and enter the real world.
SGC