Heathrow Director, I don't see why you have an issue with spotters etc. listening in on scanners. As a young lad my interest in listening into ATC sparked the interest which led to my eventual career.
p.s. I'm not talking about the ones with the little Tx button on the side ... which some little
used to broadcast Radio 1 on my frequency. I mean Radio1! It wouldn't have been so bad if it was Radio 2 or Classic FM.