This column was written before police entered Columbia University's Hamilton Hall
One challenge of free speech advocacy is holding the line even when the speech in question is vile. Then you must make distinctions between acceptable forms of expression and those that violate the rights of others. That's why it's important to have clear, firm principles applied equally to all points of view. In the absence of clarity, you find yourself making things up as you go along—like too many institutions of higher learning at a moment of campus unrest.
