With all due respect, I work at Kennedy Space Center. I had worked with two of those astronauts directly. They know there is risk and that things can go wrong that we don't know about and yet they get on that extremely complex vehicle to push back the boundaries of our knowledge. They take the risk willingly so I disagree with both of you. They are heros and they go knowing there is a risk.
Ravenstar
I worked at SAEF-II and the VPF. :-)