When America loses a few astronauts, they shut down the program...
Actually that may be a good thing. Robot probes are far better science for the buck. Let other nations do the costly and risky "tests" on humans in space.
With the same money, we could have soon* had robotic probes visiting nearby stars and their planets by now traveling in nuclear powered rockets going 15% the speed of light.
And a boat probe on a Titan lake, a submarine bot in Europa, rock samples from Mars and Venus, etc. etc. etc.
We'll be watching a Titan cruse on our living room TV's in our pajamas while their x-nauts are roasting on a wayward re-entry or suffocating during an oxygen mishap. Few care if a bot occasionally dies.
* If we had launched such a probe in the mid 70's, then it could just about be arriving at the nearest stars at 15c.