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primacy. it must be returned to western australia. and then the process of how that will be announced will be sorted through. >> a lot to watch for no doubt even tonight and throughout the weekend. we've got a lot more developments to get to in this hour. follow me on twitter @andersoncooper. #ac360. i want to dig deeper on whether the old and new search areas could both contain some sort of wreckage of an aircraft. also those sonar pingers that will lead the investigators to the flight's data recorder will actually sound like. we have a demonstration how they work, what they sound like when they hit the water. we'll be right back. hey guys! sorry we're late. did you run into traffic? no, just had to stop by the house to grab a few things. you stopped by the house? uh-huh. yea. alright, whenever you get your stuff, run upstairs, get cleaned up for dinner. you leave the house in good shape? yea. yea, of course. ♪ [ sportscaster talking on tv ] last-second field go-- yea, sure ya did. [ male announcer ] introducing at&t digital life. personalized home security and automation.
and we have no idea how all those competing currents would push this thing around in that period of time, anderson. frankly i have doubts as to whether or not you can come up with an algorithm that explains exactly where this thing would have originated, even if you get it here and determine that it is part of the plane. anderson? >> tom foreman, appreciate it. if these latest sightings in the new area do pan out and can help narrow the search for the 777's black boxes and if the sonar pingers in the boxes still work, what precisely would search vessels be listening for in they're going to be listening for this. that sound is the sound of a sonar pinger. you're looking at the distinctive shape the pinging makes on sonar screens, a spike that stands out from other ocean noises. we've been talk about the black boxes and pingers and how they're activated almost from day one. tonight we have a demonstration with cnn safety analyst david soucie and david gallo co-leader of the search for air france
could have come from, then you have a real problem. because you have 20 or more days of drifting. and we have no idea how all those competing currents would push this thing around in that period of time, anderson. frankly i have doubts as to whether or not you can come up with an algorithm that explains exactly where this thing would have originated, even if you get it here and determine that it is part of the plane. anderson? >> tom foreman, appreciate it. if these latest sightings in the new area do pan out and can help narrow the search for the 777's black boxes and if the sonar pingers in the boxes still work, what precisely would search vessels be listening for in they're going to be listening for this. that sound is the sound of a sonar pinger. you're looking at the distinctive shape the pinging makes on sonar screens, a spike that stands out from other ocean noises. we've been talk about the black boxes and pingers and how they're activated almost from day one. tonight we have a demonstration
so any other ships, if the chinese pick something up, any of the other ships, u.s. picks something up, they have been tasked by malaysia, they have primacy. it must be returned to western australia. and then the process of how that will be announced will be sorted through. >> a lot to watch for no doubt even tonight and throughout the weekend. we've got a lot more developments to get to in this hour. follow me on twitt twitter @andersoncooper. #ac360. i want to dig deeper on whether the old and new search areas could both contain some sort of wreckage of an aircraft. also those sonar pingers that will lead the investigators to the flight's data recorder will actually sound like. we have a demonstration how they work, what they sound like when they hit the water. we'll be right back. discover card. i missed a payment.