All of my time on gray floatie thingies indicates if they didn't find them by now then no one will be found. It's a big ocean. I've been there when people fell overboard in broad daylight, with floatation, were immediately seen, and still went unrecovered because they drowned before the boat could get to them. Last F-18 that was lost from a ship I was on there was enough recovered wreckage to fill a 1 meter cube cardboard box, AKA tri-wall. Not much more from the S-3. Sucks.