Asian countries like Russia and China censor. You don’t hear stories from Arabic countries, India, or northern South America I presume because they hardly have reporters and the rest of the world (wrongfully) wouldn’t care anyway.
Most of the rest of the world also doesn’t have a history of African-descendant slavery; but racism, classism, and sexism are still common in most places in the world. Religious persecution too. You do hear about that stuff if you know where to read.