Rescue of lost Titanic-bound sub would be deepest recovery mission in history

The daring rescue of the Titanic-bound submersible that disappeared deep below the water off Newfoundland on Sunday morning would be the deepest recovery mission in history if crews are able to pull it off before the vessel runs out of oxygen.

Coast Guard crews announced Monday night they have just 70 to 96 hours to locate the missing OceanGate Expeditions-operated sub and rescue the five people aboard in what would be a record-breaking effort. ---More...

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