Four more large Internet service providers told the US Supreme Court this week that ISPs shouldn’t be forced to aggressively police copyright infringement on broadband networks.

While the ISPs worry about financial liability from lawsuits filed by major record labels and other copyright holders, they also argue that mass terminations of Internet users accused of piracy “would harm innocent people by depriving households, schools, hospitals, and businesses of Internet access.” The legal question presented by the case “is exceptionally important to the future of the Internet,” they wrote in a brief filed with the Supreme Court on Monday.