DOT puts it at 13.2m: https://www.transportation.gov/office-policy/transportation-...
Plenty of volunteers, and no need for 100M USD.
People go to war for less than 50K USD.
Dying to protect a political system vs dying to advance science, better pick science.
We've never had an astronaut crew get stranded on the moon. though we got close with Apollo 13. If/when that happens for the first time, you'd better believe the entire planet will be paying attention.
Just the congressional inquiries alone will set the space program back by decades.
I am willing to bet that other parts of society (e.g. traffic planners and automobile manufacturers) have a much lower cost of human life.
It’s widely accepted that you may die going to space in experimental vehicles, nobody ever said it would be safe, and nobody can reasonably think it is risk-free.
Apollo 1 folks died, not a problem for reputation of NASA.