Like the space shuttle, you could never lose sight of the fact that you were doing something dangerous. It may be apparently routine, but if you mess up, it will bite you, and it has over the years. I had a fire once — not in ALVIN, in a French bathyscaphe — at 9,000 feet, and almost died. I crashed into the side of a volcano at 20,000 feet and almost died. I got stuck in a crack for hours and almost died. Now I don’t mean that it’s really risky. It’s probably safer than flying from here to La Guardia. Those planes fall out of the sky, and they crash and burn, and I suspect more people per hours have actually died in airplanes than in deep submergence. Only one person has ever died in a deep submersible, only one.