kilometers, 50 miles away from the area where the chinese have detected this acoustic, this noise under the ocean. it was detengtd by chinese aircraft who say over a 20-minute period they saw little white objects and of course there are aircraft, australian aircraft now being diverted down there to check that out also, but also the chinese saying that it was pretty rough down there yesterday in terms of the sea levels and, of course, it is tough sometimes to detect and most of what they have seen so far has turn out not to have anything to do with the aircraft. >> ian williams, thank you so much. paul mccarthy we'll continue to follow the story.