More than two-thirds of all tanker mishaps are caused by mistakes made by the men who run them. In The Netherlands and France there are three supertanker schools.

More than two-thirds of all tanker mishaps are caused by mistakes made by the men who run them. What is the answer to the human hazard? Many experts think it rests with the proliferation of the supertankers—including the behemoths known as very large crude carriers (VLCCs) that will be…