Good afternoon, everyone. I would like to thank everyone here for coming out. Another wonderful reading. I would like to take care of housekeeping firstperiod please silence your cell phones at this time and we have cspan with us this afternoon, so when you ask your questions please use our audience microphone. Lastly, this is not the last event today, so while we would usually ask you to fold up your chairs, today we ask you keep your chairs where they are. We welcome you today. We do over 500 events here in addition to events in this space we have different venues across the city and also hold book groups, classes and literary trips are at the year. I would like to begin by saying i am pleased to welcome Public Policy and a law professor, Melvin Urofsky, as he presents his new book, dissent and the Supreme Court. Its role in Court History and the nations constitutional dialogue. Melvin urofsky has written and edited 52 books and has devoted his career to studying americas legal histo