weather conditions and because of the time, the weather detection is greatly diminished. air and surface search will be concluded in the next two days or so and they are going to have to consult with everyone else involved to see how it goes forward. that's a huge development. >> i think he characterized it very well. one thing that he struck me that said is this area is unknown to man and by that he means, there is no data. we don't even know what the depth ares in detail. we know generally. there could be ridge systems, mountain ranges that have been never detected. to send an autonomous vehicle down near the bottom and start mapping in that area can be actually quite risky. i think they are going to be very cautious in their initial deployments and they may be