to try to figure out what those currents and winds were doing over the past two weeks to try to predict where the debris might be and where the plane might be. >> yeah, it is -- it is near impossible. the area that it covers, if you go back in time from assuming that what they saw on the satellite images from a couple of days ago, and assuming that was an actual piece of the airplane, i have tracked it back using the currents and the winds that exist with a variety of wind conditions, and you, because it is in the an arctic polar circle, it could have traveled hundreds of miles over that time, and you are covering this area hundreds of miles long, and as well as north and south tens of miles. and that is just assuming that it is the piece that the you have. and that is assuming that it stays on the surface as well. if we do recover something, we don't know where other pieces went down. and then where in the water column it is. it is going to the travel at