I care deeply about freedom of speech, but I am also a realist about terrorism and the threat it poses. I worry that among the first victims of another mass terrorist attack will be civil liberties, including freedom of speech. The right of every citizen to express dissident and controversial views remains a powerful force in my life. I not only believe in it, I practice it.
Dershowitz, Alan (2008). Finding, Framing, and Hanging Jefferson: A Lost Letter, a Remarkable Discovery, and Freedom of Speech in an Age of Terrorism. John Wiley & Sons. p. 37. ISBN0470450436.