I received this recently-published book, as a gift. Has anyone read it? The book jacket states that: "Every year, more divers accept the Andrea Doria's challenge, and some do not survive the attempt. DEEP DESCENT is the riveting true story of those who face the danger and conquer their fear, and of the tragedy that can result when courage is not enough." It sounds as though it's more about diving, than the Doria. Any thoughts?