I just watched Glenn Greenwald's TED Talks video on Why Privacy Matters. In it, he spent quite a bit of time explaining that the goal of the "surveillance state" is to control the population by generating an assumption that we are being watched.
If that were the case, one has to wonder why NSA took such elaborate measures to keep their programs secret. Shouldn't they have celebrated Snowden's revelations instead? After all, how can we be controlled if we don't know we're being watched?
If I was in the mold of a Glenn Beck conspiracy theorist, I might assume that Greenwald/Snowden are really agents of the surveillance state who's job was to get the word out.