Cypherus, you talk like the security people think: rubbish! members of the travelling public on vacation are more likely to have shots of airport buildings, check-in areas etc than spotters. Spotters, on the whole, photograph aircraft - not the front or interior of terminal buildings, car parks or other airport structures. The greatest proportion of photos are of aircraft on taxyways/runways/approach/take-off. Most aircraft photographers do not want clutter (such as buildings/people) in their aircraft photos and try and avoid such clutter whenever possible.