The document is an amicus letter brief submitted by media organizations including the Reporters Committee for Freedom of the Press to the Court of Appeal of California. The brief argues that the court's order sealing a reply brief and directing its return amounts to an unconstitutional prior restraint on speech. The order prevents the media from possessing and reporting information that was lawfully obtained. Prior restraints are strongly disfavored and the order should be vacated to avoid establishing a dangerous precedent restricting lawful publication.