It isn't. (Obviously.)

Recent HN postings, political and newsy rather than technical, about the NSA, have included stories from: The Atlantic Wire (https://news.ycombinator.com/item?id=6059446), Security Week (https://news.ycombinator.com/item?id=6054198), USA Today (https://news.ycombinator.com/item?id=5850606, article from 2006 but posted a couple of months ago), C-SPAN (https://news.ycombinator.com/item?id=5899226). Those were just the first few I found with a trivial Google search.

There are a number of stories from the Guardian. That would be because they (1) have run a lot of stories about this stuff and (2) have a good website. Do you see a problem with that?

It's the NSA-related articles that often come from The Guardian. That's simply because this paper is the window for Snowden (not sure if they have an exclusive agreement, maybe). They have the balls to stand behind him, unlike a lot of other outlets.

Also, know that the rest of the main stream media don't seem to like the idea of discussing this mess and any possible solutions - probably b/c they're ultimately controlled by influential politicians or other moneyed interests.