possible pings, were detected by the ocean shield s equipment. guess what, there was no debris anywhere, so there s still a lot of unanswered questions. and until you actually can locate something tangible, you have no confirmation this is connected to flight 370. promising, yes, but tempered optimism is a great way to put it. will ripley putting in some great hours for us in perth, australia, thank you for that. i m joined live here in new york by two men with deep expertise in the underwater aspect of this sherif search. a firm that designs and builds advanced underwater communications gear including black box pingers and also the pinger detectors it david kelly is the president and ceo of bluefin robotics whose underwater robot is effectively standing by ready to map the ocean floor whenever the search teams are confident they have found the spot. so effectively it moves from your gear, at least one part of
could send an sos? tom mad a good theory as far as discussing the incapacitation of the flight crew given the fact that the airplane is inact and flyable. even though the crew may not have been in control of the airplane. it s evident that the lack of wreckage on this sea surface, the fact that we don t have any kind of debris, which would indicate an inflight break-up, suggests that the airplane may have gone down either in another body of water or definitely over land where it s heavily jungled. greg, i think that s one of the big mysteries here is that such a large object as a 777 could just vanish into 13 air seemingly. how do you explain the fact that we haven t been able to identify any debris anywhere, any sign of it whatsoever four days in? well, it would suggest that the airplane didn t break up in flight because if it did at 35,000 feet you would have had