This is why nationalism / patriotism is so destructive (edit: in blinding us to the possibility). We are all humans no matter where we live. Humans, in aggregate, have repeatedly over the years committed atrocities. And we will again, unless actively prevented. Being 'the best country in the world' (which ever one) is irrelevant.

Then again tribal exceptionalism is in our nature too.

I'm still troubled by the memory of a well educated intelligent American refuse to believe that the US uses torture when the Guantanamo revelations came to light.