Separately, I‘m sure some folks will note that the slides appear to have a stamp on them that say „Copyright! Do not reuse this image!“ Apparently that was in the original image (not added by The Intercept). The Intercept does note that this guy had been a contractor before joining the NSA. If he was a contractor when he wrote this, even thought it was written for the government, then he could claim a copyright over it. However, if he was an employee of the NSA, then as a work of the federal government, he could not. Of course, either way it doesn‘t matter. If he actually did have the copyright on it, he‘d have to reveal himself as the copyright holder (the Intercept keeps him anonymous) and do something about it (issue a takedown, sue, etc.).