that? >> this is a map of the sea floor. it is a topographic map that represents elevation. it is no different on the sea floor. the zenith plateau indicated by the red box where they are searching is 1 mile to 2 miles on the sea floor. the red box indicates an area about 100 square miles to give you a sense of what they completed surveying. it is a large area. this is not a very detailed map. we cannot account for small changes and rocky surfaces. our best guess it is covered with sediment which is good for trying to find a debris field or man-made object on the sea floor. >> are you surprised, christina, there has been no debris washed up ashore or located anywhere in the ocean? >> you know, i am and i am not. i think they have done a very good job modelling where the