Claims of the destructive powers of nuclear weapons have, for good reasons, been greatly exaggerated.
Nuclear power was a cornerstone of Japan's energy strategy for decades, until the Fukushima disaster. The current government wants to keep some nuclear reactors open, but has lost public support.
Sanctions and warnings have failed to stop Pyongyang's belligerence.
People have been rising up against nuclear weapons ever since the first one was used – and it hasn't been for nothing.
The country plays by different rules.
A useful avatar for threats both real and perceived, the notion of a pan-Islamic nuclear weapon has little to do with reality.
Nuclear bunkers are familiar Cold War artefacts, but many have been re-purposed or lie derelict.
Beijing has traditionally retained its nuclear weapons on a no-first-use basis, but it's ready to deploy them more assertively.
One of the world's worst nightmares could in fact be an unexpected opportunity.
It's two and a half minutes to midnight according to the Doomsday Clock. But what is the clock and why should we pay attention?
The entire concept of nuclear deterrence depends on the assumption that everything will always work perfectly.
Reports of a failed Trident missile launch have all sorts of political and security implications – but they don't necessarily spell catastrophe.
Former Texas Gov. Rick Perry has experience with energy, but if confirmed as secretary of energy, he should get ready to learn a lot about DOE's big jobs: nuclear security and basic science research.
This year saw nuclear weapons tested, stockpiles renewed, and disasters remembered.
The global nuclear non-proliferation regime depends on American leadership. What if Donald Trump loses interest?
In early December, the nations of the world are poised to take an historic step on nuclear weapons. Yet Australia sticks out like a sore thumb among Asia-Pacific nations in arguing against change.
Donald Trump will soon have command of thousands of nuclear weapons. This presents a new and unknown threat to global security - and an urgent incentive for all states to ban nuclear weapons.
An industry in crisis needs a government that can deliver help where it's needed.
With a $1 trillion modernisation programme signed off and atomic scientists deeply worried about the future, American policy on nuclear weapons is pretty much business as usual.
Is the U.S. prepared for nuclear attacks from terrorists or rogue nations? A radiation expert explains how Cold War-style fallout shelters could help protect us from this growing threat.