In my view, the current government abuses and corruption are most apparent in the surveillance state but extend well into its other functions: industry regulation, social welfare programs, military-industrial spending, national security, judicial system, public education, etc.
We need to recall that our government exists to "secure [the] rights" that people have regardless of the existence of government. We should not trust government, as a general rule.
People all across the political spectrum must evaluate their expectations of government through the lens of the NSA revelations, since I believe they indicate the depth and breadth of the corruption of the entire system.