The Censorship of Huck Finn

A recent topic that has been brought up in both the classroom and in the media is the censorship of Adventures of Huckleberry Finn.  There has been much controversy about Twain's classic novel, and there always will be.  This debate is centered around the word nigger, which most people view as being extremely offensive and hateful.  The proposed censorship would replace the n-word with "slave".  I strongly disagree with this decision on nearly every issue.
First off, those in favor of the censorship argue that the book cannot be read by children due to the presence of the n-word.  I certainly agree that that is one reason children should not read Adventures of Huckleberry Finn,  but it is definitely not the only one.  So far, Huck has ran away from home, stolen, and lied to many people.  I personally don't think that those are the lessons we should be teaching our kids.  Also, there are some scenes and words that are easy for us to understand, but may be a problem for children.  Those are just a few of the reasons why kids should not be reading this book in the first place.  Another reason is the fact that replacing the n-word with slave would alter the meaning of some passages.  For example, on page 68 in our edition of the book, Huck realizes that "You can't learn a nigger to argue."  In my opinion, this passage would be completely different if it said slave instead of nigger.  In the quote, Huck is clearly referring to the issue being that Jim is black, not the fact that Jim is a slave.  One final reason that I think the censorship of this book is bad is because of the constant changing of a word's meaning.  With each new generation comes new meanings for words.  For example the word "cool" meant nothing but chilly 100 years ago, and now it has a different meaning.  My point is, who knows what words we may find offensive in the future.  Whether it be tomorrow, or in 1000 years, if other words in Huck Finn are then profane, then those could be censored, until you finally have something that looks nothing like the original book.
Also, one last thought.  If the censorship does occur, then I feel the book needs a new title and author.  It would be a crime to call it Adventures of Huckleberry Finn by Mark Twain.  I might be fine with Censored Version of What was Once a Book Called Adventures of Huckleberry Finn by (insert publisher here).  What do you think should happen if these changes to the book were made?