The potential liability of Internet Service Providers was explored in "Godfrey v Demon Internet Service". The defendants were an ISP operating Usenet newsgroups. An unknown person made a posting in the United States in the newsgroup "soc.culture.thai". The posting followed a path from its originating American ISP to the defendants' news server in England. It purported to come from the plaintiff, but was an obscene and defamatory forgery. The plaintiff asked the defendants to remove the posting, but the defendant did not do so until the posting automatically expired 10 days later.