"I may hate what you say, but I'll defend to the death your right to say it." Some version of that old saying could be the motto of the American Civil Liberties Union. Most recently, it sued to protect the rights of white racists to rally in Charlottesville -- but since the protest turned deadly, there's been a backlash. Even some ACLU members have resigned, and the organization's on the defensive about the limits of free speech. Are America's constitutional protections too broad? Do they conflict with the right to bear arms? We hear about rules in Germany where free speech led to tyranny.