Rutherford County, TN - Commentary: Free speech is often a topic of debate. But what is free speech and what is the difference between the freedom to speak freely without hecklers disrupting your free speech by overtalking, yelling or shouting? Are those hecklers limiting your freedom and vetoing your speech? Or, are the hecklers or protestors overpowering your freedom to speak freely? Or, are they just exercising their right? With more on this interesting subject, here is MTSU Professor of Jo ...