We argued that free speech wasn't merely a constitutional protection; it was a moral principle. As a Black conservative, I've learned that free speech is one of those principles everybody loves until somebody they can't stand starts talking. It never works that way.Every censorship regime begins by promising to target only the truly dangerous voices. Eventually the definition of "dangerous" expands to include inconvenient voices, unpopular voices, and finally independent voices. We strengthen it by demonstrating that our commitment to liberty survives even when liberty protects people we profoundly disagree with.Otherwise, we're not defending free speech.