You are essentially making the "nothing to hide" argument - if you aren't doing anything shady or immoral, then you have nothing to hide, and therefore you have nothing to fear from the government/feds/big brother sticking their noses in to your business and monitoring all you transactions. Only criminals/scammers/terrorists/etc. who are doing illegal things have something to fear.
Privacy is a fundamental human right. Without it, "normal citizens" as you put it suffer greatly. They simply become subjects of their government, willing to roll over and do whatever they are told to. Privacy must be protected.
Privacy must be protected, I agree with you. And to not let the government to go too far in "tightening the screws", we need people like Julian Assange, Edward Snowden and Glenn Greenwald. Such people devote their lives to protecting our fundamental rights, and we must be grateful to them for that.
However, all humans are not perfect. We all make mistakes. And someone has to keep an eye on the process of protecting our freedoms, lest our protectors go too far in that. Let's not forget that there is the Paradox of Freedom, formulated by Karl Popper in the following way:
- Karl Popper
When I was younger, I'd say "Go, f**k yourself with your "paradox". I want as much freedom as possible!" But today I have come to realization that we would have 9/11 happening every week, if there were no surveillance.
Again, I'm not criticizing what people like Greenwald and Assange are doing. I'm grateful to them. I just claim the right to disagree with what they are saying, at least partially.