"Political disagreements are one thing. Threatening to burn down a bookstore is another, and is unacceptable. While protests and calls to boycott are of course free and protected speech, that is no excuse for threats, violence, or sustained harassment. Now more than ever, we need to recognize and cherish the right of bookstores to offer books with diverse points of view from across the political spectrum."
--Summer Lopez, senior director of free expression at PEN America, in the organization's statement in support of Revolution Books in Berkeley, which has been the target of a sustained protest campaign by right-wing activists for the past several months