I'm just a single HN'er and I wasn't really thinking of PRISM... I was thinking more along the lines of how obviously valuable it would be to the NSA to either A) start companies like Google or B) infiltrate them.

I also said that I suspect that's the case, not the I assume it to be. Given that the NSA seems to do what it wants and the obvious motivation for infiltrating or starting companies like Google...I think the suspicion is warranted.