Should Huckleberry Finn be taught in school?

I believe this book will cause a lot of controversy, between a lot of races, because of the language that is used in the book.
This novel contains a lot of violence, and racial slurs, with the characters abusive, African Americans. The Caucasian community uses this word, freely with no remorse. I know Mark Twain wanted it to feel like the time, but he could have least toned the N**** word down.