After the cartoon crisis, Rose traveled around the U.S. and interviewed such figures as Francis Fukuyama, Bill Kristol, Richard Perle, and Bernard Lewis for the "New York Times" and "Jyllands-Posten". The interviews later appeared in Rose's book "Amerikanske stemmer (American Voices)". Rose has continued to write and be interviewed extensively about the cartoons and the issues raised by the controversy. He said in a 2007 interview that "publication of the cartoons definitely raised the level of consciousness about self-censorship." Although some observers have denied that he achieved his goal with the cartoons because there was supposedly "more self-censorship" than before, Rose maintained that what had increased was not self-censorship but awareness of it: "before the cartoon controversy, there were many instances of self-censorship that went unnoticed." Prior to the publishing of the cartoons, he noted, the Tate gallery in London had removed a torn-up copy of the Koran from an exhibition in order to avoid offending Muslims. "There was no public reaction to this; there was no talk about self-censorship although it was an obvious case." After the cartoon case, by contrast, the proposed cancellation for similar reasons of a Berlin production of Idomeneo caused "a tremendous public outcry and outrage."