First I should say that taking photos at an airport can be hard, not because of a lack of subjects, god knows there is actually the opposite problem, but the ever present risk of being considered a terrorist is not to be taken lightly.
The other day, waiting for my daughter I took my camera and was wandering around outside the terminal looking for interesting shots and I overheard (as I think I was meant to) the security guys talking about me and that if I walked past them again I'd get pulled up. This was a little confronting and also a little tempting. I wasn't actually going to pass them again as the plane I was waiting for landed, but hearing that I almost wanted to, but then again I didn't want to, and then I felt guilty about feeling some concern and almost started courting their scrutiny to prove to myself I wasn't afraid.
How fucking dumb was that getting?
Anyway, the real point. Airports are really cool place to photograph, not just (or even) the planes. Its the people, the buildings, the anticipation, longing, heartbreak - its all there. Actually I wasnt able to get much on my last trip except for this which I really like. The sense of abandonment and irrelevance really hits me.