Regardless of how hostile you think the NSA is towards the rights of the US people, it’s still not a national security problem. For that to be a national security problem, the NSA would have to be hostile towards the objectives of the US government.

In addition to that, if you think the US government is more hostile towards its citizenry than the Chinese government is, well... Also, if you’re relying on infrastructure that the government controls for your security, then the intentions of the NSA aren’t really your biggest problem.