I believe anywhere defence or nuclear related in the UK bans camera phones (in fact, I'm sure one instance has been mentioned here but I cannot find the thread).

Quite amusing really because my very first job (sandwich placement 11 years ago) was with the UK AEA in an area that was at best commercially sensitve and you couldn't even take a radio into work to listen to the Cricket without clearance. I guess things have moved on a little.

Regards
I