TOKYO -- None of the six Japanese nuclear reactors that have been cleared to restart by regulators are expected to become operational this year because of local opposition and delayed safety measures, in a setback to the nation's energy policy.
In addition, four of the nine nuclear reactors restarted under tougher safety standards put in place after the 2011 Fukushima Daiichi disaster face the possibility of a shutdown next year as they lag behind in anti-terrorism upgrades.
