from where they are now, shifting to where another ping in the area was detected. also, when you circle back to the debris, australian officials saying that they're more suspicious about it, basically saying the more they look at it less excited they get. >> the bluefin is almost finished scanning the most promising search zone without finding anything. starting to near the point where australian officials will scale back the general effort or not? >> from hearing from the prime minister in australia, they want to throw all of the resources they can and not scale back but stay committed to the search and talking about long term, they want to do everything they can to fine wreckage. there's no sense from the australian side, malaysian side, there's any scaling back of efforts. just trying to figure out what the next phase should look like seems to be the focus. >> they're going to run out of places to search, one would think. is this object of interest a