The NSA's Security Guidelines Handbook (titled by the Department of Redundancy Department) is fascinating and creepy.
On occasion, personnel must provide information concerning their employment to credit institutions in connection with various types of applications for credit. In such situations you may state, if you are a civilian employee, that you are employed by NSA and indicate your pay grade or salary. Once again, generalize your job title. If any further information is desired by persons or firms with whom you may be dealing, instruct them to request such information by correspondence addressed to: Director of Civilian Personnel, National Security Agency, Fort George G. Meade, Maryland 20755-6000. Military personnel should use their support group designator and address when indicating their current assignment.
If you contemplate leaving NSA for employment elsewhere, you may be required to submit a resume/job application, or to participate in extensive employment interviews. In such circumstances, you should have your resume reviewed by the Classification Advisory Officer (CAO) assigned to your organization. Your CAO will ensure that any classified operational details of your duties have been excluded and will provide you with an unclassified job description. Should you leave the Agency before preparing such a resume, you may develop one and send it by registered mail to the NSA/CSS Information Policy Division (Q43) for review. Remember, your obligation to protect sensitive Agency information extends beyond your employment at NSA.
(via Charlie's Diary)