This job description will self destruct

In the course of my fruitless job searching, I came across several postings for positions at the CIA. Obviously I'm not looking for a job in Washington, not to mention that I don't speak Arabic or Chinese or any of the non-Western languages that the positions called for, but even if I was or did, I think the disclaimer at the end of the posting would have made me pause:

Important Notice: You are interested in a position as an overt employee---which means you can acknowledge your affiliation with the Central Intelligence Agency. But should you? There may be friends, family, individuals or organizations who would be very interested to learn that you are an applicant for or an employee of the CIA. Their interest, however, may not be benign or in your best interest. You cannot control whom they would tell. We therefore ask you to exercise discretion and good judgment in disclosing your interest in a position with the Agency.

Honestly, the first time I read it, I thought it was a joke. But I guess there are spies everywhere, just looking to prey on unsuspecting librarians. Go figure.