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US nuclear forces, 2013

By Hans M. Kristensen, Robert S. Norris
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Japan in focus: A collection of the Bulletin's coverage

As the Bulletin continues to publish erudite analysis and opinion pieces from the world's top experts, these writings will be archived here to create a valuable resource for our readers.

Beyond our imagination: Fukushima and the problem of assessing risk

The risk-assessment method that engineers currently use to predict the probability of a severe nuclear accident is unreliable and creates a false sense of security.

Japan's nuclear history in perspective: Eisenhower and atoms for war and peace

Re-examining Japan's nuclear history could not only help the country come to terms with the Fukushima disaster, but help it find a future without the US nuclear influence that has shaped its past.

The unbearable ambiguity of knowing: Making sense of Fukushima

Information and transparency are desirable, but they will not make the ambiguities surrounding the Fukushima crisis disappear. Technical expertise alone cannot provide the clarity we seek.

The emotions of nuclear experts

Like most people, nuclear experts may respond to crises with emotions such as anger and dread, which can lead to panic and regressive behavior.

Preventing a nuclear terrorist version of Fukushima

The nuclear safety "stress tests" planned for Europe should be expanded to include tests that evaluate the security of nuclear materials around the world.

Is the United States prepared for a nuclear reactor accident?

Although a catastrophic failure of emergency backup systems at a US nuclear reactor may be unlikely, solid planning and preparations are in order -- and should begin with determining whether an emergency zone extends 10 or 20 miles from a nuclear power plant.

Fukushima, risk, and probability: Expect the unexpected

A probabilistic approach to risk leaves us unprepared for "infrequent catastrophes." Nuclear plants require a "possibilistic" approach that allows us to design safeguards against the worst-case scenario.

Fukushima: An industrial disaster but not a nuclear 'apocalypse'

The ongoing crisis at the Fukushima Daiichi nuclear power plant is not a cause for panic but rather an opportunity to improve safety worldwide.

The road not taken: Can Fukushima put us on a path toward nuclear transparency?

The origins of civilian nuclear power positioned our society, and the nuclear industry, to favor military needs and financial gain over public understanding. Until this approach is changed, history will continue to repeat itself in devastating ways.

Fukushima: Another reason to ratify the Comprehensive Test Ban Treaty

The success of the CTBT's global monitoring system in response to the tragedy in Japan has demonstrated its effectiveness in responding to natural disasters, further evidencing its value to US and global security.

Japan’s nuclear crisis: The fine line between security and insecurity

Since the 1970s, Japan has turned to nuclear as a secure source of energy. But this security has a double meaning.

Reflections on Fukushima: A time to mourn, to learn, and to teach

Japan faces prolonged anxiety and distress in its quest to find answers to the Fukushima disaster. One answer may be that a conventional back-up system was in the wrong place. There is much to learn.

In this nuclear world, what is the meaning of 'safe'?

Before the world's nations refine energy development plans, countries must ensure that one word -- safety -- is not lost in translation.

Facing fears with facts and reason: Managing energy risks after Fukushima

The energy future must take into account the needs of the world's growing population and protect the future viability of the planet. And this does not come without risk.

The lessons of Fukushima

If the nuclear disaster teaches us anything, it is that a perfect safety system is unattainable. Will the United States learn from Japan's mistakes?

Guarding against disaster: As Japan's tragedy becomes more serious, so does the need to learn from it

Not to be overlooked is the necessity for a twofold nuclear-safety strategy: stricter standards for reactor designs and systematic efforts to reduce the consequences of accidents.

After the nuclear renaissance: The age of discovery

Before this month's tragedy in Japan, many were confident that reactor design and safety had matured and catastrophic accidents were simply not going to happen. Fukushima has proven these assumptions wrong -- and it will have a number of implications for the energy debate.

An explosive mix: Uncertain geologic knowledge and hazardous technologies

With science unable to accurately determine major geologic events, a reassessment needs to be made of how much nuclear site planning relies on such predictions.

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