The Japanese government will launch an investigation into scrap iron exported to South Korea that was contaminated with radioactive materials exceeding the maximum permissible level, trade ministry officials said Tuesday. japantimes.co.jp Fukushima radioactive particles can’t be dissolved, even with hot nitric acid! enenews.com The UK's Office for Nuclear Regulation has said it is satisfied that EDF Energy is taking "appropriate and conservative action in the interests of continued nuclear safety" in its decision to shut down its reactors at the Heysham 1 and Hartlepool sites. world-nuclear-news.org Duke Energy issued an emergency declaration at its Brunswick nuclear plant as a precaution Tuesday after the Halon system activated in its control room simulator. nuclearstreet.com