The saga of the Titan submersible, missing since Monday shortly after it launched to take tourists to see the wreck of the Titanic, is a story that may prove to be as tragic — and maddening — as the tale of the doomed ocean liner itself.In 2018, experts inside and outside the company sounded alarms about the Titan submersible — most notably, that the craft wasn’t properly certified to dive to the depths necessary to reach the Titanic. OceanGate’s director of marine operations, David Lochridge, wrote a report saying the craft needed more testing, stressing “the potential dangers to passengers...