“What I worry about most are things that will stop me from being able to get to the surface — overhangs, fish nets, entanglement hazard,” he said, adding that a good pilot can avoid such perils.

Source: https://ktar.com/story/5508413/a-titanic-expert-an-adventurer-a-ceo-and-a-father-and-son-are-on-the-missing-submersible/