Sure, it’s question of relative risk. It’s likely that people living on the moon would be wearing protective suits/inside lunar facilities anyways. I guess the

Sure, it’s question of relative risk. It’s likely that people living on the moon would be wearing protective suits/inside lunar facilities anyways. I guess the question is if it’s riskier to transport fissile material as cargo vs in an engine. I am not sure what the relative risk would be.