>> if the first dive is any indication it will be quickly. the first died you mentioned, yesterday, that covered four square miles before the blue fan came back to the surface after going deeper than it was programmed to do. they did get data off that and quickly. it showed nothing. four hours more in this pass if they are on time on the bottom of the ocean floor but then it takes a couple of hours to get back up and four hours to download the data. we should know something tomorrow. very early stages in the search. they call it mowing the lawn going back and forth across the area. >> one official has said to thirds of the search area is within the operational limits of 4500 meters. can they push this to go any deeper?