BOLDUAN: Breaking this morning, the Supreme Court issued a ruling on a key question when it comes to your privacy and your cell phone. Let's go to the court to find out all the details. CNN's senior Washington correspondent, Joe Johns, is there. Joe, what exactly are we learning today?</s>JOE JOHNS, CNN SENIOR WASHINGTO CORRESPONDENT: Kate, this was closely divided Supreme Court, a 5-4 ruling. Chief Justice John Roberts, who wrote the opinion, also siding with the majority. The rule that comes out of this case, which could have a big effect on the way the authorities and the government track people, here it is. I'll read the rule. "The government has to get a warrant in order to obtain extensive locational cell phone records from third parties, especially the phone company before it can get certain information on individuals under criminal investigation." Now, there were a lot of facts in this, but it's very simple. In 2011, a guy named Timothy Carpenter was implicated in a series of robberies of stores in the Detroit area. The authorities went to the phone company, got his location on cell phone records, discovered he was at the scene of four of those robberies, locked him up and sent him to jail. He was, in fact convicted. Now, of course, the question was whether he had a reasonable expectation of privacy in that information that was collected from the phone company. The Roberts decision says yes. The question is whether it was a Fourth Amendment search, if you will, that triggers the protects of the Constitution. Once again, Roberts says yes. There were a lot of descending opinions, very strong ones. And so it is an issue to go into the future wondering whether the court will revisit or further expand privacy protections for people who use cell phones. Back to you, Kate.</s>BOLDUAN: Technology always advancing faster than laws, the laws that cover them. Let's see if this is another of once of those cases and it will continue. Great to see you, Joe. Thank you. Coming up for us, the Conners are coming back, now without Roseanne. Will you tune in? What is Roseanne saying about it? We'll be right back.
Supreme Court Rules on Privacy & Cell Phones