https://www.wsj.com/articles/nuclear-regulatory-council-nrc-...
> In 1957 the internationally recommended limit for radiation exposure was about 15 times the natural background radiation that people absorb from rocks and cosmic rays. Without evidence of harm from exposures within the 1957 limits, the U.S. had by 1991 ratcheted its public limits down to less than a third of natural background radiation.
This is a common theme that the WSJ opinion pages push. Much of the regulation put out by Washington isn't about safety, but more about bureaucrats protecting themselves from every being too loose with regulation. It's rare, if ever, that a federal agency gets in trouble for having rules that are too strict. They do get blamed if something happens in an industry they regulate, and people scream that more regulation is needed.