Given all the bad things parts of the government were involved in, maybe it wouldn't actually be that bad of an idea to be shizophrenically suspicious of itself.. checks and balances, right?
A novel thought.
But history and current events suggests it doesn't often play out that way.
You just wind up with multiple groups seeking influence, with infighting limited to squabbling for control over that influence rather than attempts to erode it.
e.g. You get several branches of government [1] violating the fourth amendment, all for their own purposes, with occasional questions raised about who should be doing the violating, but little 'serious' talk about whether it should be done.
[1] FBI, CIA, DHS, NSA -- who isn't invading the privacy of US citizens these days?
If fairness is a fundamental or key part of a nation's identity or principles, then removing that fairness is an attack on the nation and is a national security matter. Securing a nation isn't just ensuring that foreign people don't steal it.
You are seriously mistaken if you believe that a violation of your privacy is better from party A than party B. Both groups of people will fuck you over, it's only a matter of time.
Less bothered about the spying than about what happens with the information obtained - which of those 2 countries has kidnapped people recently then tortured them and sometimes killed them in the process? Or alternatively, just fired off missiles, dismissing the collateral deaths. I'd far sooner be spied on by either country than have them suspect me of anything. There are no good guys to be seen in this story.
Unlike U.S. telecoms, which are totally free of influence from Washington.