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expedition yesterday and failed to return safely last night. >> sandra: operated by oceangate expeditions, a company in the past year has begun taking tourists for $250,000 apiece to explore the wreckage, which is located on the ocean floor of the atlantic around 350 miles south of newfoundland. alexis mcadams has the latest breaking details. >> just having the developments roll in here, it's a small vessel, so an active search and rescue mission hoping to find the five mission specialists on board. oceangate launched it, the size of a minivan, so inside a small vessel from newfoundl...

Have 96 hours of survival time, based on the amount of oxygen that's available in the capsule, and so that gives us some time to continue searching and continue to use all means to try and locate the crew members. >> john: admiral, as we look at video taken from oceangate expeditions of the titanic resting there in nearly 13,000 feet of water, the question arises, you say you have the capability to search underwater. do you have the capability to search the bottom of the ocean if this submersible got stuck or somehow experienced a power failure and could not come back up. do you have eyes on t...