Re: Live that everyday
No, no NDA for that and given that you could (presume still can) get a free bus outside the airport stating in big letters where it is going to, I suspect that they don't much care if people know the where. You had to show your ID to prove you worked there.
Another one would be the companies/people with offers of cheap accommodation for anyone working there on providing proof...given these were adverts on the site, in their accommodation assistance unit, again, see point 1.