Radiation News Roundup June 9, 2014 Japan has failed to mention having about 1,411 pounds of unused plutonium in reports it submitted to the International Atomic Energy Agency in 2012 and 2013. rt.com All β nuclide (including Strontium-90) density in groundwater at Fukushima jumped up by 1,000 times since this February, according to TEPCO. fukushima-diary.com After years of cost overruns and design mistakes, the National Nuclear Security Administration plans to completely overhaul its approach to building a new facility for processing highly enriched uranium at the Y-12 site. nuclearstreet.com The Nuclear Regulatory Commission is refusing to turn over requested documentation to Senator Barbara Boxer who is investigating the closure of the San Onofre Nuclear Power Plant. ocregister.com