The loss of the Skipjack-class nuclear attack submarine USS Scorpion (SSN-589) remains to many an unresolved mystery more than 56 years after it sank, with all hands, on 22 May 1968. But a closer look at the event suggests a different description: that it is one of the more closely guarded secrets of the Cold War.This is a focused review of the critical 18-day period immediately following the sinking, and eight key events that occurred during that span. It includes the sinking itself; the Scorpion’s failure to reach Norfolk as scheduled on Monday 27 May; the formal declaration of “Event...