A pair of top Democrats in the House and Senate on Wednesday reintroduced a bill to make it U.S. policy not to use nuclear weapons first. Thehill.com A Japanese state-run nuclear fuel laboratory near Tokyo has detected a radiation leak in its plutonium handling facility, but no workers were exposed. Energyvoice.com Tehran says that China has slowed down working on its redesign of a heavy water reactor in Iran, following the U.S. withdrawal from Tehran's nuclear agreement with world powers. Startribune.com PG&E Corporation and its primary operating subsidiary Pacific Gas & Electric Company - operator of California's Diablo Canyon nuclear power plant - has today filed for reorganisation under Chapter 11 of the US Bankruptcy Code in the US Bankruptcy Court for the Northern District of California. World-nuclear-news.org