Earlier quoted context omitted.
That's what control means, the ability to alter your behavior or the course of events. When it became public knowledge that the US government had backdoors in the long distance telephone network, that did alter people's behavior and the course of events. Similarly, the public knowledge that the NSA is spying on the Internet is altering people's behavior and the course of events. I agree the NSA can't stop people from…
Wrong kind of alter. You're talking about practical changes, but in no way was anyone forced to change their behavior. In this instance, 'alter' would be something the NSA did which literally changed an outcome. As in, block access to Hacker News, or redirect gmail.com to gmail.nsa.gov. The NSA does not have this power, nor has the US government ever done this. So again no, it is not historical fact.
What isn't? You're not saying the stuff I mentioned isn't historical fact; you're just saying that the historical fact doesn't meet your definition of "alter" or "control". Right?
If so, I'll be glad to adopt your definitions of terms for the purpose of this discussion. Then my question is: is "control" by your definition the appropriate threshold at which to be concerned? If so, why? If not, what is the appropriate threshold?
(If you're just objecting to the word "control" because Schneier used it, that's an argument about words, not about substance. Maybe Schneier should have used another word; but that doesn't change the substance of what he said.)