The citizenry will not overcome the tyranny because most of the citizens are either (1) unaware of how the power effects them (2) do not understand it.
I'm starting to believe the only way to change this isn't to get people outraged or make them understand the effects of pervasive surveillance on freedom. The solution is to instead make it clear just how ineffective it is at its stated purpose of keeping us all safe.
If anything, this is how this whole power grab got started in the first place. "If we could spy on everyone we could've stopped 9/11."