That isn't my intention. I suppose it's at least partly because the US is, um, rather visible in this regard. *cough* the NSA *cough*
Human rights violations committed by governments are global, and some much worse than the US. The US is rather visible because the world is obsess with looking at the US.
Not so, IMHO. The US tends to be in focus because it a) likes to be there, b) is a self-proclaimed guardian of democracy, and c) claims to be one.
Now, the last bit is true, mostly, but there are some fairly visible cracks on the surface, cracks that are rather difficult to ignore.
I should probably add d) it is powerful enough to stay in focus, and e) it doesn't just claim to be a democracy, it claims to be THE democracy.
Yes, there are far worse governments out there, but most of them either don't claim otherwise or their claims are so hollow that nobody gives them a second thought. North Korea and Russia spring to mind.
Something like this whole NSA business requires resources out of the ordinary but still only makes the news because it is so diametrically opposite to what the government in question claims to stand for.
Sweden, for example, does have its very own NSA scandal (yay us!) but nobody cares because they just don't have the power or the resources, and even if they were saying that they were here to guard democratic principles and whatnot, nobody would listen.