Don't miss this from NRO. Actually the real issue with the article is how much we overrate the impact of radiation exposure on our health.
Heaven forbid our forebears had been the same. "You can't build a fire! It will lead to horrible burns and scalding, forest fires, property damage, respiratory problems, cigarette smoking, cancer from barbecuing.... Food will taste better, so people will become obese. Light will be available at night, so people will stay up all night in bars swilling booze they've distilled using a fire. Then they'll go home and breed children out of wedlock..."