George Mason University law professor Michael Krauss wanted to illustrate for students in his first-year torts class how certain hurtful words might prompt legal action. Mission accomplished. Mr. Krauss spun before his class a hypothetical example of the KKK carrying signs reading "Kill the Niggers" in a predominantly black neighborhood. Soon, students were circulating a petition deploring Mr. Krauss's insensitivity and demanding that the N-word be banned from classrooms.

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