I missed it. I assume that Ocean Shield is in a different location to where the Chinese thought the heard something?
Ocean Shield at north end, Chinese ship at south end of high probability area.
He held up a map showing the locations of both ships and the high probability area (of presumed impact).
I wonder if there is a chance the audio signal could propagate quite a distance if deep underwater conditions enabled that?
He's also saying the search grid turn arounds take 3 hours (as we've heard on here, they're difficult)
Of course CNN crawl is saying "US towed pinger locator hears signal..."