Captain Bender, thank you for your service. Who knows, but you and my father may have crossed paths along the North Atlantic, because he was on one of those corvettes that was trying to keep the bad guys away from you.
I would presume that the wrecks we're talking about here would be located fairly close to the continent, on the continental shelf. Those that went down in the open ocean would be beyond reach to just about everybody, I would presume.