by shin xinhua, the chinese new agency. what we know is frustratingly vague. there are two relatively big objects surrounded by smaller white objects over an area of several square miles. nothing more specific than that. aviation experts i've been talking to say that could tally with a debris field from something like a downed plane, but could is the operative word here. we just don't know. now, you said that a p-8 poseidon, a u.s. plane was diverted to that area. it's got to the area. and frustratingly, it can't locate that debris field which the chinese saw. now, what we are learning through tweets from the search coordinators is that the chinese aircraft was actually just heading back out of the search zone on its way back to perth when it saw these objects. it sounds like they saw them at quite a high altitude, 33,000