they could be smugglers, they could be mules, we don't know and they could be armed. as the border patrol's elite flex team sprinted out ahead of rurss a helicopter joined the chase. >> like that right there. that's a flex team with the bodies. >> do they have them? >> reporter: a lot more -- hallie, so that's a little bit of what you can expect this sunday on date line. it's coming up this sunday night on nbc. >> you know we'll be watching. thank you for all your week over the last several weeks and thanks for kouth the show. we want to turn to breaking news because the supreme court we've been talking about how the court is coming up to the end of its term. it has now ruled in a dhas could have huge implications for cell phone privacy. pete williams is outside a rainy court with that ruling. pete, what do we know? >> reporter: big victory for privacy advocates. the supreme court has said that when the police want to use your cell phone to track your movements, they have to get a search warrant. now that's a big deal because so