Comment by bgribble

So there are definitely printer dots in the posted images, but how do we know they are from a printer at NSA? They could be from a printer at The Intercept, a public copy and print shop, or anywhere else, intentionally left in as a red herring.

Of course, as others have posted, she doesn't appear to have tried hard to cover her tracks at NSA so that doesn't seem too likely. But stating that she accidentally left in the printer dots is assuming several facts not in evidence.