out of fuel, there's no fuel left on that 777, mark, would it be more conducive to floating wreckage from that aircraft, as opposed to sinking? >> well, parts of the aircraft would have floated more easily. certainly the wings, because they have a lot of air compartments in there. but, you know, when that airplane would have landed or hit the water, a good deal of it would have sunk and come apart. and really, what you're going to be looking at is what kind of a debris field there is. which will help you determine how that airplane came apart, but parts of it would still be floating. >> because usually in a situation like this, you're looking for not only debris field, but looking for an oil slick, too. that would be a sure sign that something was going on. if the plane was empty from fuel, wouldn't be an oil slick. >> very little. hydraulic fuels, liquids, that's it. >> and that would disappear fairly soon. >> yes, it would. >> is cooperation getting any better between -- there's rivalries, tensions in the area