>Why do 'Former' Dignitaries Still Hold SEC Clearance?
In its wisdom, Congress passed the 2004 Intelligence Reform and Terrorism Prevention Act, which required that by 2009, agencies must process 90 percent of clearance applications within an average of 60 days — less than a sixth of the average 375-day wait in 2003.
The government also chose to farm the bulk of its vetting work out to [contractors], which generally are more nimble than federal agencies in growing or shrinking and are practiced at luring federal funds by promising to cut costs. It relied in particular on U.S. Investigations Services (USIS), a firm that in 1996 was calved off an independent agency known as the Office of Personnel Management (OPM) and quickly got most of the background investigation business before being snapped up by a private equity investment firm in 2003.
http://foreignpolicy.com/2013/10/01/how-congress-screwed-up-americas-security-clearance-system/
Might be worthy of some digging…