Let’s give this a name:
Obamagate.
It has; Fast and Furious. This scandal will put all the hyphen-gates to rest. It is it's own name and it will be infamous.
And since when is Eric Holder the POTUS? You would only use the Executive Privilege defense if obie himself was implicated or guilty of something in F&F.
And if that's the case, then it's time to hold holder in contempt and move on to impeachment for obie.