CNN Smerconish April 4, 2014 04:17:00
The ways and the wind. not easy to work down there. even at 240 kilometers, it is an undertaking. >> he said it is difficult especially and we don't know if the pings are going. what happens if the pings stop? what search tools are left to use? >> at that point there is a lot that can be done visually. as pain staking as this part it is more pain staking to find the black boxes. we are not just looking for two black boxes. we are looking for any debris from this aircraft. if you think about the visual aspect of that or the sonar i am optimistic about that because these are large debris fields....