depicting people with strollers or bags and things like that. reporter: with detection technology rapidly improving, an obvious concern is whether their systems will be able to track the details of our daily lives. what we do is turn on video feeds into data. whatever one frame gets for our system, we process it, turn it into some data, and then we delete it. i think there is a lot more things we can do if we had better understanding of the pedestrian activity in the city. when we have to go schedule trash pickup, how many police we need to deploy to a particular area. the better information you have on a place, the better you re going to be able to manage it. and still to come, an exclusive outfront investigation into a string of young affluent men committing mass murders. did their the fact that their families try to help them and give them therapy make them do it? and brad pitt attacked at a movie premier. jeanne moos tells us what she knows about the attacker s histor
capability is the passive and active sonar and they re really sensitive. this submarine is used to track other submarines. so it s sonar systems are super, super sensitive. so better capability to find things because it s more sensitive with its detection technology. absolutely. it is listening for those pipgs. as we already pointed out, we re down to the last few days of this now. the battery life could last up to 40 days. could also be 20 days based on how they re stored. it s just much more difficult to find it once the pinger stops. one thing we hopped over that we should go back to. yeah. the search area has moved. the good news is it s closer, but to some, the bad news is
really tend to come together. you get plenty of warmth and moisture flowing out of the gulf of mexico, and you get strong disturbances that come out across the rockies and into the plains, so really, it is, at this time of year, anywhere from central and south texas all the way up through the state into oklahoma, and then beyond that into kansas, nebraska and the northern plains. that entire swath, really, from canada all the way down to mexico tends to see these stronger storms at this time of year. now, of course, they can happen at any part of the state, and if they happen in west texas, in wide open country that it s not as big of a deal, but every once in a while, things line up just right or poorly, as the case may be, in parts of metro areas. so that certainly would happen in this case. well, listen, thanks for educating us a little bit, carl, especially on the detection technology, which is encouraging. i want to turn our attention to nbc s gabe gutierrez, who is on the groun