Australia has the tightest security controls among nations with nuclear material while North Korea poses the world's greatest risks, a new index by experts said Wednesday. The Nuclear Threat Initiative, in a project led by former US senator Sam Nunn and the Economist Intelligence Unit, aims to draw attention to steps that nations can take to ensure the safety of the world's most destructive weapons.
Among 32 nations that possess at least one kilogram of weapons-usable nuclear materials, Australia was ranked as the most secure. It was followed by European nations led by Hungary, the Czech Republic and Switzerland. On the bottom of the list, North Korea was ranked as the least secure of its nuclear material, edging out Pakistan. The index, which gave rankings on a scale of 100, also listed Iran, Vietnam and India below the 50-point threshold. "This is not about congratulating some countries and chastising others. We are highlighting the universal responsibility of states to secure the world's most dangerous materials," said Nunn, who has long been active on nuclear safety.