The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. June 21, 2011 Report: Majority of U.S. Nuclear Power Sites Leak Radioactive Materials into Groundwater ----------------------------------------------------------------------------------------- The Associated Press has another major expose on U.S. nuclear plants. The news agency has revealed radioactive tritium has leaked from 48 of the 65 U.S. commercial nuclear power sites, often into groundwater from corroded, buried piping. Leaks from at least 37 of those facilities contained concentrations exceeding the federal drinking water standard—sometimes at hundreds of times the limit. .