Cell Phone Checking News Today

Suzanne malveaux tells us what we think we know about it so far. >> reporter: from the moment malaysia flight 370 took off it was communicating with a satellite orbiting more than 22,000 miles above earth, sending out pings or electronic hand shakes to say "im here and okay." >> the ping is really like your cell phone checking that its connected with a cell phone network. >> reporter: the first three recorded pings come between 12:30 and 1:00 a.m. local time as the plane takes off from kuala lum...

Suzanne malveaux is working this part of the story. shes got new details. suzanne? >> wolf, we have new details about this because were talking about communications between the plane and a british commercial satellite. it could give us clue to what happened on board as well as the final moments. this is based on a theory that understanding exactly when that plane lost contact is going to tell us where the plane went down and dramatically narrow the search area. from the moment malaysia flight 37...