Wow, I guess ignorance is not bliss. What you don't know, will hurt you. Ignorance is not the biggest danger, it's misinformation
I can remember back in the 50s & 60s, there were books and movies about radiation induced mutations. No one knew for sure because not enough time had passed since Hiroshima and Nagasaki to gather data on children of survivors. Now there seems to be little evidence that radiation causes mutations.
Radiation is probably very low on the list of things to fear. It is just more talked about, and people rush to judgment without getting all the facts. It's not science that has caused this, it's the journalists, politicians, and insurance companies.
They are the ones that scare me (but not to death). If fear of radiation would scare you to death, there would be a lot less ignorant people in the world.