I for one am going through quite a culture shock. I always assumed the nature of FOSS software made it immune to be confined within the policies of nations; I guess if one day the government of USA starts to think that its a security concers for china to use and contribute to core opensource software created by its citizens or based in their boundaries, they might strongarm FOSS communities and projects to make their software exclude them in someway or worse declare GPL software a threat to national security.
Not realy since Open source is most of the time still the best Option, and you cant realy controll Open source since there is always the option to fork Things. (For example If the US decided that China ist a NoNo the Open source Community in EU or India can do what they want since it is not under their jurisdiction)