Another person to have a look at national security secrets

That  makes no sense.  The Special Master is the person who would have the authority to look at those documents.  The judge can assign a Special Master, or possibly have a look at them herself, although I think the government would file an objection to that approach.  But can she do both?

Also...

True, plus..."want to get work done"?  What work?  Looking for some old document he could point to as praising him?  The most work he ever did was the rummaging part.

...but hey, do what you want...you will anyway.