This isn't some paranoid crazytalk from a government driven mad by Cablegate. It is a fact that classified data isn't declassified by nature of having been published. Apparently, contractors who are cleared for handling classified data (here you learn that Matasano doesn't do government work) are quizzed on this routinely. It's apparently a basic rule of information hygiene that you can't ignore classification just b…
Sure, that's the precedent and official policy for actual employees and contractors. But does that standard make sense applied to private citizens, having conversations about widely-available information, before ever applying for a job? The State Department may get more careful, coldly calculating applicants by eliminating those who discuss leaked cables – but not more curious and well-informed ones.
EDIT: In case it wasn't clear - I am calling the policy asinine, not the employees/contractors.