Who gets to use the N word?

People talk about hip-hop spreading the N-word through the culture, but I take pains to point out that popular culture has always spread the N-word. There is serious precedent -- in the 1920s and 1930s, you went into a white middle-class home and the N-word was everywhere. It was on the shelves, it was in the cookbooks, the sheet music on the piano, the toys children played with. Let's not talk about hip-hop introducing this word in some new and unprecedented fashion. The only difference is that hip-hop exists during a period of high technology and spreads these things a lot faster. But let's not pretend that hip-hop has somehow confused white people regarding the use of the word. I think that's a very disingenuous argument.