@Faceonthewrongfoot
To be honest, carrying out torture and murder sprees out of public view is not something that sounds like much of an improvement.
Also, I wouldn’t trust the numbers given by some, or maybe even all of those countries you mention. At least, in the US, you will probably have people independently recording what is happening. Well, as it has to go through the legal system, I hope so. I’m not sure China, Yemen, Iran et al, would be trustworthy, open and transparent on the rates of their murder sprees.