A federal magistrate has refused to dismiss a suit by deaf Californians who want CNN to add closed captions to its video clips on its website, the Chronicle reported today. The suit accuses CNN and its owner, Time Warner, of violating state disability laws by denying full access to more than 100,000 Californians who are functionally deaf. CNN provides closed captions on television, as required by federal law, but doesn’t caption the brief video segments on its website. Magistrate Laurel Beeler of Oakland, in siding with the plaintiffs, said the lawsuit only alleges discrimination in the way CNN delivers news online and isn’t an attack on free speech.