judge considering the five lawsuits challenging Arizona's immigration enforcement law is trying to avoid being buried by legal paperwork. U.S. District Judge Susan Bolton has imposed limits on so-called "friend of the court" briefs filed by groups that aren't plaintiffs or defendants in the case. Bolton's order lifts a requirement for the state to respond to all briefs and imposes size limits on new briefs being filed. She says the many briefs being filed in the case (in her words) "may well jeopardize the court's ability to rule" by July 29 on a request to prohibit the law from taking...