How will I know? By 5tephen 4eo | December 19, 2009 0 CommentAirport security staff: “Has anyone put anything into your luggage without your knowledge?”Passenger: “If it was without my knowledge, how will I know?” FacebookTwitterWhatsAppLineTelegramVKShareHey! Check Out More StuffHow to model Britain after SingaporeHeart Of GlassA (narrow) passage to Changi Airport