of this journey is certainly going to be the hardest. that s how deep, give or take, the ocean is where those pings are being picked up. and tracing them back takes a whole lot of know-how and probably a pretty serious amount of luck as well. i m joined now by cnn s meteorologist chad myers in atlanta and from boston the vp and general manager of the company that makes and designs undersea communications gear, including the pingers and also the pinger detectors. chad, i want to start with you. will ripley was telling us about what we have. we have four hit zones but they re 17 miles apart and they seem to me, you know, the neophyte in this game, to be a very strange pattern. can you help us make sense why they would be so disparate and in such a strange shape? we assume, you know, just from the lay person, we look at the pinger, we think it s going to ping just like a bell. it s going in every direction. that may not be the case because