I am suspicious of your motives for posting now.
There is only one way that there could be this deep black hole of information and that is through the US side...and you should know that if you are as familiar with the CIA as you say you are.
I have no doubt that many different government agencies read FR. At least one , if not more, are probably all over this thread.
I think many people here who have done any research on intelligence, or know anyone who has worked in intelligence, or has worked in intelligence,or just sits down and thinks about it can recognize that the black hole across the board couldn’t happen without whisperings....or flat out threats...from more than just the Chicago Machine.
But carry one believing and trying to further the notion that there is no way the Dunhams worked with the Spooks.
The "black hole" started in earnest with Ayers near 100% authorship of the Obama myth in Dreams. Ayers is hardly CIA! Ayers wife, Bernardine Dohrn was in Cuba getting trained by Cuban intelligence, doubtless under the gaze of the KBG.
http://therealbarackobama.wordpress.com/2008/10/27/team-cuba-ayers-dohrn-just-two-political-activists-from-obamas-neighborhood-visited-cuba-in-september-2008/2/
The serious scrubbing and locking of Obama's past didn't begin in earnest until after his 2004 convention speech when the Alinski Appollo project decided to go for broke backing Obama. That scrubbing has been aided and abetted by thee MSM, not US intelligence services, in my view.
Would the CIA or FBI under Bush at the time officially participate in such an endeavor?
I say there is no chance of that whatsoever, although rogue elements of both were actively trying to bring down Bush in coordination with the DNC as can be seen with the Plame crap and false Iran NIE report claiming that Iran wasn't trying to get a nuke weapon.