One year ago OceanGate’s Titan sub imploded, taking 5 lives and dreams of deep-sea exploration with it

Last June, the eyes of the world were upon the same North Atlantic waters where the Titanic and its passengers sank to icy fates - as international rescue teams searched for a submersible carrying five explorers venturing to the shipwreck. The disastrous implosion of Titan and the reckless path that led to it, however, continues to tell cautionary tales, writes Sheila Flynn