REUTERS
Alexander Bychkov, deputy director general of the International Atomic Energy Agency, makes an inspection at the Monju fast reactor plant in Tsuruga, Fukui Prefecture, on June 12. (Asahi Shimbun file photo)
VIENNA -- Important progress has been made towards strengthening global nuclear safety after Japan's Fukushima accident last year, according to the United Nations atomic watchdog, but a leading environmental group disputed this.