[stochtastic]

> and so must be hiding that they can do so

I don't believe I said that. You can draw your own conclusion from the fact that it is within their capabilities to detect, localize, and to some extent classify a wide range of sources in this region of the ocean.

What you won't find is a lot of information about those capabilities in the public domain. Just consider that what _is_ known tells us that we had these capabilities in the 1950s, and that they were continuously improved upon throughout the cold war. This is not Area 51 conspiracy speculation; it is bread-and-butter NRL stuff that is more than half a century old at this point and is classified for good reasons.

[psychphysic]

I'll rephrase. What about this incident supports your claim?

As far as I can see not only is the answer to that is "nothing" but the claim itself is non-falsifiable.