How It Works IAEA chief Yukiya Amano dies in office Yukiya Amano, a veteran diplomat who led the U.N. nuclear watchdog agency and worked to prevent more atomic bombings, has died, his agency said. By Arete News - July 22, 2019 IAEA's Director General Yukiya Amano at a 2014 news conference in Vienna (AN/Dean Calma) You need to login to view this content. Please Login. Not a Member? Join Us