Or how transparently you can run a cover-up.
The DOJ has proposed new federal regs, which don't require Congressional approval, which would allow beleaguered Federal agencies to respond to FOIA requests for documents by denying that the documents exist. Doesn't exactly inspire confidence, does it? But wait, there's more!
The doctrine apparently extends to even live people whom the phone answerers can describe as being in Iraq, or possibly on the moon. I suppose this is how the witless protection program works in Washington.