especially given the fact that new zealand searchers are trying to identify the debris they may have picked up. >> we still need that element if we can get it. if we have the subsurface going on and still have the above surface fightings going on if we can get sightings that will pay out to be parts of that airplane that's going to be huge if for no oth reason it will bring everybody back on board to believe we are in the right place with the right ideas and now on the right track. i think that's a very important element. >> technology expert, brett larson, much of this information came from satellite day tachlt what do you think about the quality of the information now at hand for searchers? >> you know, i think it's good. but i think given where we are in terms of technology as a