involving police and your cell phone. privacy rights versus police going after alleged criminals. sensitive issue. >> and actually a very simple issue when you think about it. everybody knows that when the police arrest you they can pat you down. the question in this case is let's say they find a cell phone as is often the case. can they read what's on your phone without getting a warrant? and unanimously the courts said no. you need a warrant. they said, look, it's not accurate to call them phones anymore because they have text messages. they have internet records and emails and photographs. there's more information in your phone about you than there probably is in your apartment. so the courts said you need a warrant and i thought it made a lot of sense. >> it did to those nine supreme court justices. the conservatives and the liberals all nine of them unanimously agreed. how unusual is that? >> at the end of the year, the supreme court only has two more days for opinions. tomorrow and monday.