[florean]

> the NSA simply looked up everyone who had accessed the document and inspected their workstations for clues.

The FBI doesn't mention the watermark in their affidavits, but they do mention that The Intercept gave away that the document had been printed and mailed from Augusta, GA. That allowed them to quickly zero in on Winner. The only "clue" on her workstation was that she had e-mailed The Intercept asking for a podcast transcript months before. In other words, she knew The Intercept existed. The Intercept burned her.