The Indianapolis: Movement ReportingA filing error left 900 men stranded in the open ocean.

From the show

Rules Written in Blood

The sinking of the USS Indianapolis reveals how a simple bureaucratic error can have devastating human costs. After its mission, the ship went down, but no one knew it was missing. For nearly four days, its survivors were left adrift, facing sharks and the elements. Their ordeal exposed a fatal flaw in the Navy's tracking system, leading to new protocols to ensure a ship's absence would immediately trigger an alarm.