The Challenges and Controversies Surrounding the Missing Titanic-Bound Submersible

A CBS reporter who rode the Titan submersible last year described some of its parts as "less sophisticated" and "jerry-rigged." The submersible, which is owned by OceanGate, vanished off the coast of Canada this week with five people inside. The reporter's account has drawn attention because of the snags it hit along the way, including getting "lost" for a few hours and not being able to find the wreckage of the Titanic during one of the dives. The submersible has "about 40 hours of breathable air left," according to the US Coast Guard.