Every astronaut flew into space for a living. But while NASA has not solved the security problems, I would not put me back into a shuttle - and no other astronaut. The confidence is shaken.
I think for being not unsympathetic that their appearance may also appear, so differently it, must; similarly as with animals, which meet us in very different forms, which look somehow harmonious however all. On exactly such forms I would stand.
At least believe this many humans, who are interested obviously in this topic. Many of them visited me after lectures and meetings, in hope that I can give concrete answers to their questions. For it was clear: If that does not know it, who is to then know it?
