Senator Dianne Feinstein (D-Calif.) has sought access to an undercover informant who helped the FBI chronicle bribery, kickbacks and money laundering inside Moscow’s nuclear industry as part of an Obama-era Russia corruption case. Thehill.com

General Electric Co., the Boston-based conglomerate, is facing a federal lawsuit over its role in the Fukushima nuclear disaster in Japan in 2011. Bizjournal.com

A control room operator at the Peach Bottom nuclear plant has been barred from the controls after the employee failed a controlled substance test. Plant owner Exelon notified the U.S. Nuclear Regulatory Commission last week that a licensed operator tested positive following a fitness-for-duty test. Lancasteronline.com

The United Kingdom Ministry of Defense’s top scientist is barred from overseeing Britain’s nuclear weapons program because his dual nationality means he cannot be given the required security clearance. Thetimes.co.uk