I mean, it's been a well known fact that the NSA has been intercepting and logging all domestic internet/mobile traffic since Snowden. I bet there are over 16m dick pics sent in the US on a daily basis.
I know but I think the general public doesn't know or understand this. It's still not exactly admitted as a general thing how this works. Apple and other companies usually talk about how they are resisting to give out access etc.
But yeah, nsa can probably access all windows and Mac systems. I don't think Linux though. Not counting Intel Management Engine in the cpu.
I remember another story as well, where the journalist actually walked up the hill that blocked the view of the facility and saw the construction. It had about the same focus, but didn't go into as much detail on the computing side of the NSA, just their storage capabilities.
The knowledge that a government agency is recording everything is one of those existential horrors that slowly fades and just quietly lurks in your mind, hidden beneath the daily struggles and interests.
It predates your story by at least five years, 2007, when a Silicon Valley engineer revealed that a backbone line had been spliced and all traffic was passing to government machines.
That revelation also inspired an outraged public backlash of 'meh.'
Sad part is that it could be real these days. If they just used slightly less obvious language, so people are not certain what it means exactly. Microsoft and google are working with nsa of course, and Snowden showed that any nsa employee can look at anything.