On Jan 5, 6:15*pm, frank wrote:

SOSUS was retired and shut down. Little thing with Walker giving away
the candy store to the SU on how we tracked subs.

Completely wrong. SOSUS is still operational, though there are fewer
NAVFAC's operating and now SURTASS is generally preferred: both
because of the operational flexibility that the T-AGOS have and the
vastly easier maintenance (and upgrade) opportunities that they
provide.

And Walker doesn't really match the timelines for when the IUSS (the
acronym for the combination of the two) started to decline: the fall
of the USSR and the dramatic drop in the number of submarines we
needed to track in the open ocean does (the drawdown seems to start in
the mid 1990's).

Chris Manteuffel