Erratum
In the News and Comment article "EPA scraps radionuclide regulations" by Marjorie Sun (9 Nov., p. 672), the reduction of risk to cancer was incorrectly calculated. Individuals living near elemental phosphorus plants have an increased risk of dying from cancer of 1 in 1000. The Environmental Protection Agency is proposing to cut the cancer risk to 4 in 100,000. The plan would reduce the risk by just over one order of magnitude, not three orders of magnitude, as stated in the article.