There's a lot of unclassified information about their historic capabilities, I'm pretty sure they can give a lot of detail without leaking anything not already

There's a lot of unclassified information about their historic capabilities, I'm pretty sure they can give a lot of detail without leaking anything not already public. https://en.wikipedia.org/wiki/SOSUS https://en.wikipedia.org/wiki/SOSUS https://www.amazon.com/Red-November-Inside-U-S-Soviet-Submarine/dp/0061806773 https://www.amazon.com/Red-November-Inside-U-S-Soviet-Submar...