I was in the Navy for 9 years active duty. The USN never had a nuke accident, meaning, sailors killed due to radiation poisoning. If I am wrong, pls let me know. True, nuke subs have gone down, but not due to radiation issues.
I hear you about cost, but I don't think we have a level playing field due to the over regulation. But, I'm not a nuke expert, so can't say. But, France relies heavily on nuke power. Not sure what their elec rates are.