first they concentrate near the malaysian peninsula. but then they expand east towards vietnam. and west towards the andeman islands. but there's another problem -- >> the way the international investigators have been working together is kind of like a bunch of teen age girls running around a locker room all trying not to show each other what they've got. >> who is in charge? it has to be managed better than it is in order to get those answers. >> taens begin to come fast and furious with the discovery of on several satellite ping else sent from the plane, referred to as handshakes. >> so there is a box on the plane which gets you to the satellite. that box was still alive. so it's not unlike your cell phone. when your cell phone is on, even if you're not making a call, it's constantly checking in with the nearest cell tower.