Mark Small

Her loss was a watershed for the U.S. Navy, leading to the implementation of a rigorous submarine safety program known as SUBSAFE The Submarine Safety Program (SUBSAFE), is a quality assurance program of the United States Navy designed to maintain the safety of its submarine

fleet; specifically, to provide maximum reasonable assurance that submarine hulls will stay watertight, and that they can recover from unanticipated flooding. SUBSAFE addresses only flooding; mission assurance is not a concern, simply a side benefit. Other safety programs

and organizations regulate such things as fire safety, weapons systems safety, and nuclear reactor systems safety. From 1915 to 1963, the United States Navy lost 16 submarines to non-combat related causes. Since SUBSAFE began in 1963, only one submarine,

the non-SUBSAFE-certified USS Scorpion (SSN-589), has been lost. https://en.wikipedia.org/wiki/SUBSAFE 

"Interesting" fact about the loss of the Thresher.... It's Nuclear reactor, is still down there. These reports provide specifics on the environmental sampling of sediment, water, and marine life which was done to ascertain whether Thresher's nuclear reactor has had a

significant effect on the deep ocean environment.

Thx - terrible, but news we need to know.

Well I don't know about 'news' as its 56 years ago the accident happened... But it sure does make me wonder about that reactor...