To be honest, it's not entirely clear what the details are in this case, but the Associated Press is saying that the Supreme Court has agreed to hear the latest case arguing about that the Child Online Protection Act (COPA) - which is an attempt to ban certain online porn. You may recall that the Supreme Court heard some of this case last year and said that it seemed unconstitutional to them, and sent it back to a lower court to review. A year before the Supreme Court had reviewed another part of the case and found that there's nothing wrong with using a "community standards" test to determine if something is acceptable. As the case bounces back and forth between the Supreme Court and lower courts, it's unclear what, exactly, is being argued this time. The AP report focuses mostly on the earlier rulings, and just mentions quickly that this case will focus on whether the law is too restrictive.