Why assume that the framers of the US constitution were infallible and all-seeing, with the power to foresee the future? Particularly if you have doubts about whether Gods had the same capabilities. Regrettably this thread very well illustrates the failures of the absolutist freedom of speech approach in dealing with dangerous extremists.

THere have always been things that a populace have been forbidden to own, say, and do. The question is where and how to draw the line, and where and how to stabilise it so that it cannot be manipulated for anti-social ends.