Japan's new nuclear regulator plans to set new standards for allowing the restart of reactors kept closed in the wake of the Fukushima radiation crisis. Shunichi Tanaka, chairman of the newly created Nuclear Regulation Authority (NRA), said stress tests to check to ability of reactors to withstand disasters such as the earthquake and tsunami that wrecked the Fukushima Daiichi plant are only temporary. The new authority replaces two regulatory bodies, both criticized for cosy ties with the power industry.