"You have to ask yourself what it is they are trying to do, ..."
... trying to protect themselves from our wholesale slurping of their data. The cheek!
Frankly, given that we know about the extent of spying and hacking by the US, Russians, British, Germans, Chinese, Norks, and so on, no sane country contemplating pursuing independent policies should use closed-source software supplied by companies outside their direct control. Even with code reviews, the truly sensitive data shiuld not be trusted to systems where you do not control all the components - both hardware and software.
Which is exactly why both Russians and Chinese do invest in developing fully-independent computing capability. And so they should; and bigger fools are those of us who do not do likewise and continue to rely unreservedly on systems developed by the US.