Agree. Unfortunately by the time SAR efforts were underway the debris field could be scattered for miles in the ocean. Hopefully one of the countries involved in the search has the technology and manpower to try to pinpoint where the FDR (black box) may be located while it is still active (pinging) - assuming it isn't too far down in the water.
Evidently that area of the ocean is only 25-35 meters deep, so hopefully recovery won't be as difficult as it was w/ AF 447.