Dear Geoff

Have you ever seen a publication called Jane's?

Surely basic general maintenance facts can't really be official secrets
Military procurement is open to public scrutiny

It really doesn't matter to me but it seems decidedly strange to cite official secrets over such a trivial matter.
After all, youve posted your own name and a list of old military colleagues on the web. If it's all so secret then what are you doing advertising your secret job?

Marc