Librarians have begun a landmark challenge to a controversial clause of the USA Patriot Act ?that demands information about library patrons’ borrowing records. The lawsuit was filed ?against U.S. Attorney General Alberto Gonzales and FBI Director Robert Mueller in the U.S. District Court for the District of Connecticut by an unnamed library and the American Civil Liberties Union. The suit was filed on August 9 and made public by the ACLU on Thursday. It calls the FBI’s order to produce library records “unconstitutional on its face” and said a gag order preventing public discussion of the lawsuit is an unlawful restraint on speech. Critical ?details of the lawsuit were blacked out on the ACLU’s Web site in compliance with the gag order. The library is thought to be based in Connecticut since the lawsuit was filed there with the participation of the Connecticut branch of the ACLU.