I posted a thought on the very same subject a few weeks ago, but it seems relevant still. Where does one stand with regards to that little piece of paper I signed marked 'Official Secrets Act' or does no-one care anymore after Katherine Whatsername spilled the beans over the war.
Personally, whether something is classified or not, the good old fashioned 'need to know' principle still applies! Does that person - need to know - the information. Depsite being allowed to see things in my day-to-day job, I accept that sometimes I'm not party to things as I, do not need to know.
Oh, and thankfully, not being OC GD or any other scribbly type, at least I won't have to deal with any request that comes in, except to pass it onto 'the relevant authorities'