from satellites whether that's military or governmental or commercial, and you go to those. and so that's what we're doing. >> if you are able to find debris, does that automatically mean that you would be able to figure out where the plane went down if in fact the plane did go down in the water? would you be able to automatically figure out based on tides and time? >> great question. and the currents and the wind and the sea state plays such a huge factor. being so long from that initial flight takeoff, it's such a huge variable. so what we normally do in the u.s. navy, when we come upon this situation we immediately launch a helicopter and we establish a central point where we think the last known contact was. that's called a datum. so from this datum we calculate the currents and the winds. and that is why these search