There can be little doubt that civil liberties are at risk of erosion today by certain ideologies. This is of obvious concern to intellectuals in liberal democratic societies. In the yearning for greater social good, both conservatives and progressives occasionally cross the lines of thought censorship. And when they do so, they threaten the intellectual freedom that lies at the foundation of modern democracy. It is essential that free intellectual conversation, even strident debate, about these issues continue unabated.