I doubt it's about what the astronauts themselves would consent to. It's about congressional hearings, what the talking heads on MSNBC and Fox News would say, a

I doubt it's about what the astronauts themselves would consent to. It's about congressional hearings, what the talking heads on MSNBC and Fox News would say, and what all of that might mean for the lives and careers of many thousands of additional people who have no intention of going into space themselves.