Electronic Ping News Today

Now the pilot made the last announcement -- the last radio contact. then its the airplane supposedly went around air space of indonesia. were getting this left and right. we have to sort those things out. >> the words on the cockpit voice recorders. if they pilots were incapacitated or died before the end of the flight at it one thing, but if a pilot was ditching the plane into the ocean as the flight ended, that quite another. >> the only problem with the voice recorder, if it copies over every...

This is what it sounds like. do you hear that? thats the electronic ping, its not really audible, human ears cant pick it up. of course theres a catch to this. >> battery pingers may have only days or hours left. which apparently is a game-changer once that happens. if they can find something in the next 24 to 48 hours. joining us from london, alastair is here with us. >> good to have you here. a senior u.s. official tells cnn, actually, our pamela brown, that investigators have discovered that ...

Sierras cellphone in a field a few miles away from her home in morgan hill, california. 25 miles south of san jose in santa clara county. police found the phone sunday by tracking its electronic ping. investigators scoured creek beds, fields, all of that overt weekend for any clues into her disappearance. search dogs by the way apparently lost her scent at the edge of her driveway. family and friends are hopeful that she is still alive and they say she would not have runaway. >> i talked to her,...