Security clearances - U S Government Accountability Office - Bog

" Security clearances allow personnel access to classified information that, through unauthorized disclosure, can, in some cases, cause exceptionally grave damage to U.S. national security. In 2011, the DNI reported that over 4.8 million federal government and contractor employees held or were eligible for a clearance. To safeguard classified data and manage costs, agencies need an effective process to determine whether civilian positions require a clearance. GAO was asked to examine the extent to which the executive branch has established policies and procedures for agencies to use when (1) first determining if federal civilian positions require a security clearance and (2) reviewing and revising or validating existing federal civilian position security clearance requirements. GAO reviewed executive orders and the Code of Federal Regulations and met with officials from ODNI and OPM because of their Directors' assigned roles as Security and Suitability executive agents, as well as DHS and DOD based on the volume of clearances they process. "