A federal judge has dismissed a lawsuit filed by conservative radio talk-show host Michael Savage against an Islamic civil rights group over its use of a portion of his show in which he called the Quran a "book of hate."

Savage sued the Council on American-Islamic Relations, or CAIR, for copyright infringement and racketeering late last year, claiming the group violated his rights by using a segment of his "Savage Nation" show in a letter-writing campaign to get advertisers to boycott the program. In the broadcast used by CAIR, Savage also called the Muslim holy book "a throwback document."

In her ruling Friday from San Francisco, U.S. District Judge Susan Illston said people who listen to a public broadcast are entitled to use excerpts for purposes of comment and criticism. She also said no evidence was presented to show that advertising on the show's broadcast was affected by CAIR's actions.