A very long post but well worth reading.
I think it makes clear the answer to the above question; The PR crew recently hired by team Obama is very interested in insuring that this does not come back to haunt the president as he gears up for the re-election campaign.
Furthermore, I think this most recent post indicates there is no doubt that AG Holder and O himself knew and approved this scheme.
Go read it all:
http://sipseystreetirregulars.blogsp...gunwalker.html