Mark Twain's "The Adventures of Huckleberry Finn" is a book that contains a multitude of words that might be thought of as offensive, namely the "N-Word".
What this cartoonist seems to think is that it's ironic in a way that we are censoring Huck Finn because of the N-Word, when such a word is prevalent in much of our mainstream music.
Most notably are various rap and hip hop artists that incorporate the word into their songs, or the people that use the word frequently in everyday conversation.
It's ironic that Huck Finn was chosen to be censored when the word is used on such a larger scale.
Freedom of speech is a constitutional right, and politicians playing culture police is not a way of promoting that right.
If we want a more fair society, one that doesn't restrict us and upholds our rights, we should stand against this type of behavior because when our rights are challenged in such a way, the only thing we can and should do is fight back and protect them.