Have there been advances in US SONAR Net tech since the Cold War? :TG.YnotDo Answers

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Question by Tominator: Have there been advances in US SONAR Net tech since the Cold War?
Has the U.S. put any significant research into more effective SONAR nets, or are we using obsolete technology? In theory, could a high-tech nuclear-capable sub park itself off the American coast? Citing resources would be great, as I have not been able to find much on the subject.
I understand that much of that information is classified, but I thought I’d check and see what information is public knowledge, and I thought “what better forum to post such a question than yahoo answers!” I also recognize that we were able to track Soviet subs with great efficiency. But that was 20 years ago! If other countries advanced their submarine programs, and, if we didn’t make enough advances in SONAR Net tech, might not a hostile sub be able to make it to our coast? Or are these worries unfounded? I sure hope they are.
The Wiki article about SOSUS states: “With the ending of the Cold War in the 1990s, the immediate need for SOSUS decreased, and the focus of the US Navy also turned towards a system that was deployable on a theatre basis. The SOSUS components are now being used for various scientific projects, such as tracking the vocalizations of whales in various study projects, as a data network for undersea instrumentation packages, and for acoustic thermometry. ”
Doesn’t really sound like SOSUS is used for much more than listening to whales. Does anybody know the answer to my question?

Best answer:

Answer by Yak Rider
Advances will be classified.

Do you really understand the SOSUS system?

http://en.wikipedia.org/wiki/SOSUS

How about SURTASS?

http://en.wikipedia.org/wiki/SURTASS

We knew almost immediately when a Soviet submarine put to sea. We knew the type and in many cases we knew the exact hull number. We tracked ‘em all the way over to their op areas off the East and West coasts.

We knew when the Soviets had major accidents even before the Soviet naval command knew. We could detect hull implosions, break-ups, and runaway reactors at distances of 5,000 miles and more.

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Have there been advances in US SONAR Net tech since the Cold War?

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