The Days of SOSUS and a Western Powers Attack Sub tailing Soviet Boomers the full time they were operating are gone perhaps.....but the public will be unknowing of the actual capabilities of the US DOD currently.
Indeed. SOSUS still exists in part, manned by reservists, as part of the IUSS. What I am unaware of, and I am sure so are most, is what has replaced it….
https://fas.org/irp/program/collect/sosus.htm
On 26 April 1999 Lockheed Martin Corp., Manassas, Va., was awarded a $107,031,978 firm-fixed-price contract for Phase II of a deep water, undersea surveillance system. This system is a long life, passive acoustic surveillance system that can be configured for multiple mission applications. It has the capability to provide long-term barrier and field acoustic surveillance, long-range acoustic surveillance coverage of open ocean areas, and acoustic surveillance in areas with high ambient noise.
This contract contains one option, which, if exercised, would bring the total cumulative value of this contract to $153,234,288. Work will be performed in Manassas, Va., and is expected to be completed by September 2005…..
https://news.lockheedmartin.com/2010...marine-Warfare
https://www.govconwire.com/2017/01/l...-modification/
http://mseas.mit.edu/archive/PLUSNet/5stewamsPAF2.pdf
https://www.naval-technology.com/fea...nce-auvs-uuvs/