Story Musgrave: I have always known the risks of the shuttle, and the risks are very high. It’s the most dangerous vehicle we’ve ever flown without escape capability, and I knew that from the very start. It was distressful though. I knew we would have an accident, but I expected it to be what we call an act of God, in which the entire team was doing exactly what they should have been doing to the best of their abilities. But you are operating such a fragile vehicle — a butterfly strapped onto a rocket — that no matter how perfect you are, you’re going to lose something. I expected the accident would be due to that, as opposed to just out-and-out negligence. That is what was troublesome.