the NSA and their fellow swimmers in the acronym soup of the intelligence-industrial complex are increasingly reliant on nomadic contractor employees, and increasingly subject to staff churn. There is an emerging need to security-clear vast numbers of temporary/transient workers ... and workers with no intrinsic sense of loyalty to the organization. For the time being, security clearance is carried out by other contractor organizations that specialize in human resource management, but even they are subject to the same problem: Quis custodiet ipsos custodes?

via Snowden leaks: the real take-home - Charlie's Diary.