A Connecticut prosecutor asked a court to keep search warrants sealed in the case of the CBS News producer who is accused of trying to extort $2 million from David Letterman, the Associated Press reports.

The search warrants involve the home and a car related to CBS News producer Robert J. "Joe" Halderman, who has pleaded not guilty in the case.

The prosecutor argued that if the search warrants are made public, it could hurt the prosecution by subjecting witnesses to media scrutiny. She also wants to keep the courtroom closed during a Thursday hearing.

–Elizabeth Jensen