This right here I think its the problem.
BUT , before i get into that , a word is just a word is just a word, to a certain extent.
How a community uses a word or the actions they take among themselves is not the problem per se. It's how your communities enemies use the word and the actions THEY take.
So black people calling themselves the word as a term of endearment or a term of anger is neither here nor there its how others who look down on them uses it. You really think ol racist ass billy bob cares or knows the differences between using it -igger or -igga ?
Forgetting all the supposed origins and i have to disagree with LeyeT the Ethiopian word "naga" and the word of today are two different words with two different meanings who just so happen to almost sound/look alike. The one the used today is more closely related to a Spanish/Portuguese word. Putting that a side though the way the word originated here in the U.S and was used was with a negative connotation. It was used to describe people who whites thought were subhuman and to be used for manual labor. That is the harshest of the harsh that why me personally I have never fully understood the whole "we made into something positive " thing. Hundreds of thousands of people died behind that word. I couldn't imagine this being the new hand sign for jews.
http://southpawbeagle.files.wordpress.com/2010/05/heil_hitler.jpg
So I think saying we made it something popular is more of a social defensive mechanism than anything else. To make something popular you have to have control over it. Not even the rappers who glorify everything that is wrong within urban communities have control over it. Speaking of rappers think about whenever there criticized about there lyrics, what is there response? " We are taking the negative things we see in our community and bringing to life, MAKING IT INTO SOMETHING POSITIVE" In reality like i said they have NO control over the word. Tomorrow if the record companies wanted they could ban the word from records. They send the order down the chain of command and ALL the most popular rappers would have to stop using. Same thing with TV's & Movies , one order and you would never see or hear the word on a screen again. Who you think is sitting at the head of those record labels and TV studios? Who signing off on those rapper pay checks? Those are the people in REAL control of the word. Giving people a false sense of control is the way you really keep them down.