The U.S. Supreme Court this morning handed down a mixed decision in Arizona v. United States, a case challenging that state’s SB 1070 law, which is based on the controversial Prince William County ordinance that was cast aside as unworkable in 2008. While throwing out provisions making it a state crime to be in the country illegally and to make it a state crime to seek work, the Court refused to say that the Arizona “show me your papers” law was invalid on its face, without additional facts and an interpretation of the law by the Arizona Courts