Let me tell you my modest post-9/11 dream. One morning, I'll see a newspaper article that begins something like this: "The FBI is attempting to persuade an obscure regulatory body in Washington to change its rules of engagement in order to curtail the agency's significant powers to hack into and carry out surveillance of computers."
At a fundamental level, suspicious activity reporting, as well as the digital and physical infrastructure of networked computer servers and fusion centers built around it, depends on what the government defines as suspicious. As it happens, this turns out to include innocuous, First Amendment-protected behavior.
If you want a world in which you can't be taken possession of via your screen, in which you don't more or less automatically come with a dossier and a profile, I think you're going to have to slip those screens back into your pockets or, given that you can be tracked via your smartphones wherever you go (even if they're turned off), maybe into a desk drawer somewhere.