andy bowen of the oceanographic institute with us today. woods hole found the wreckage of flight 447. we have expertise of kareen tina symons. i have a lot of questions about the pinger. the depies to emct the signals. we have a lot to tackle so let's get started. the search area is massive. but more intimidating, the depth at which crews might have to search. 13,000 feet down. the eiffel tower, empire state building, 1 world trade center and mt. washington don't have the amount the depths have to go. we have more with andy bowen at the woods hole oceanographic institute and christina symons. before we get to the depths, there is a particular map i have been watching on cnn for the last several days. could you put that up on the screen now? it shows the triangulation of where the pings have been located. christina, if the distance is somewhere between 13 and 17 miles, why is the search area between massachusetts and connecticut combined? >> there is always a bit of error as to where is the sound actually coming from. if you are standing sti

andy bowen at the woods hole oceanographic institute.e week ago, the three of us were having a conversation about pingers and the pings ended. does the fact the pings ended give credibility to the fact they were sounds coming from the black boxes and not from some other human-caused device. andy, i'll start with you. sorry about the confusion. >> sure, michael. that's fine. that is a reasonably logical conclusion to draw. certainly everyone was looking very hard at the sources of the sounds. they are very distinctive, the frequency at which the beacons emit their sound is well known. all of those elements came together along with the timing, as you were pointing out for the pings to essentially cease as a result of the batteries wearing out. i think it follows in step with what we would expect and clearly they are moving rapidly toward a real capability toward searching to the sea floor. >> christina symons, this is critical. he went so far, the acting transportation minister says pray for this next phase of the search. >> yes, i think t