<p>Four-and-a-half years after the Fukushima disaster, Japan has restarted its first nuclear power reactor. But despite new safety requirements, just how safe are Japanese nuclear power plants, and how can authorities be so sure that there will never be a repeat of the 2011 reactor meltdowns? </p><br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en
