Ping Sounds News Today

We have to put it into the bigger context, when we got there they were running against the clock. 30 days-plus, they were trying to learn something. they were doing it very fast. data was being analyzed, crunched. they couldnt afford the luxury of saying lets wait. now they can have that luxury. >> well, also i mean, david or richard, when you think about you make a mistake with a number of ping sounds, you know, it is coming from something else other than black boxings. the idea that they have ...

Of ping sounds, you know, it is coming from something else other than black boxes. the idea that they have one microphone that picked up some sound, that seems like a long shot to say the least. i mean, if the pings were a mistake the idea that they somehow off a microphone picked up this sound seems like a huge long shot, no? >> yes, those listening devices are typically on the sea floor. that is a long way from the impact on the surface. they could have heard the hull of the plane imploding bu...

It? >> the treaty we have with the world community is pretty clear. but you really dont step on the rights of another country. so you have to wait until they invite you in. theres some discussion going on right now that may change. >> the black boxes usually have a battery life of about a month or so, 30 days. heres what prime minister australia tony abbott is saying. >> were now getting to the stage where the signal from what we are very confident is the black box is starting to fade, and we ar...

Ul. >> but annabel, what i dont understand is they have narrowed down the search regarding the ping sounds, yet theyve expanded the search today? why is that? >> reporter: well, thats based on the currents, the ocean currents, the weather forecast, whether they might expect the debris, any possible debris would have been carried by the ocean. but that really varies from day to day. sometimes the area to be searched goes up. that also depends on the visibility, on the weather forecast, what the c...