This site managed to get the description of Prism completely wrong more than a year after we found out what it is. I'd guess the rest of it is just as poorly researched.
I think he's referring to the opening line: "PRISM is a clandestine mass electronic surveillance data mining program"
Electrospaces describes it as follows: "It shows that PRISM is not about bulk or mass surveillance, but for collecting communications of specifically identified targets." [1]
That quote is from one the sites listed on nsa-observer.net's front page with the description "provide[s] documents and in-depth analysis on the NSA." Based on the author's Twitter feed, I'm assuming he's based in the Netherlands.
Without personal interaction and not to cast aspersions on a person I've not met, John Young has a reputation of being a bit of a firebrand, iconoclast and bombastic figure - however cryptome has operated for many years with a simple policy of publish docs deemed inappropriate for public view...
They intentionally make no judgement on the things they publish.
It is a note of importance however, to realise cryptome - in the case of most of these source documents - are serving as a host rather than linking to the original (guardian/WAPO/firstlook/der speigel etc.) websites, probably as much for posterity as for convenience.
I see little reason to question the veracity of the info provided on this site.
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Sorry, but this site relays entirely on javascript. For your information, it doesn't include any tracker or any script linking to another domain.
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Being a website concerned with NSA exploits, they are missing an important point.