No one knows which way the Supreme Court will go, but the tech industry fears disaster: If the creators of programs that enable sharing over the Internet are liable for what people do with the software, then the manufacturers of any devices that enable copying could also be at risk. So everyone on the trail that leads from you to a given digital file is in danger — the computer manufacturer, the CD-burner manufacturer, the audio-editing software writer, the Internet service provider and the telecom company.

Andrew Leonard, writing in Salon about MGM v. Grokster, now before the US Supreme Court.