Sure there is a threat. But, this is mostly about wanting more money. We recently added a fleet operation in the area as well as an OPFOR unit, due to the Russians finally getting there 1977 designs to factory...and they have all of 3 new subs.
The Admirals duty is to get more funding to alleviate the threat. They know exactly, as I do, that every nuclear sub is tracked and monitored.
There is only a contextual threat, due to limited operations of the Russian Navy. Now, that is on the uptick, but they have so few resources, that they are in check.
Their shit is mostly old. You need to do more research in the area.
Great to know that you are on top of it and running our navy so well ... be sure to tell every one at the Pentagon of your expertise and vast knowledge.