Why didn't the Cold War get bloody?

[Anomalocaris]

There were quite a few accidents on both sides involving radioactive materials that caused injuries and deaths.  And above ground testing of nuclear weapons increased the background radiation the world over.

As I understand it we've found the hydrogen bomb we dropped on Charleston, South Carolina. One less worry. We were fast with the one we dropped on Spain. I think.

There are still at least 16 soviet nuclear 1.0 MT warheads sitting on the sea floor about 1000NM off the coast of Georgia and Carolina from the 1986 sinking of Yankee I class SSBN K-219.

One missile blew up in the tube while the sub was near the surface, the warhead was ejected and is now sitting somewhere by itself on the sea floor.  Subsequently the sub sank after being towed a significant distance, taking the other 15 missiles with her to a different spot on the sea floor.

Later survey is said to show the submarine is largely intact, but the hatches to several missile tubes were  open and their missiles with warhead were missing.  Where those warheads are is unknown, if they were somehow ejected by the sub during the process of sinking then presumably they are scattered around the wreck of the sub.

At least one other soviet sub is known to have sunk in international waters with nuclear tipped torpedos still onboard.   Subsequent survey is said to have found the door of one of the tubes containing a live nuclear torpedo open, the survey sub used manipulator arm to close it.  But no word on whether the torpedo was still inside.