The basic premise is false. > "Why did we never see it coming?" Many people saw it coming. I was warning about the possibility of dragnet surveillance, the existence of ECHELON, the use of the American security apparatus to steal trade secrets, the surveillance of non-American politicians, et al... For many, many years before Snowden. And I'm just some rando on the internet who follows the mainstream news! We were ca…
It was a theory that there was a conspiracy. The issue is that people dismiss conspiracy theories out of hand - even when the theory is backed by means, motive and incentives.
"This power is being used to influence the political process in the US" is still a conspiracy theory and will likely turn out to be true as well one day - because again the people involved have means, motive and incentives. But incentives based predictions are a bit subjective and most people don't seem to believe that incentives overrule character.