Two preeminent ballistic missile experts describe what they believe occurred during North Korea's April rocket launch and what the test results reveal about Pyongyang's current missile capabilities.
Nothing in Washington comes easy; yet early indications are that there is strong bipartisan support for a new arms control agreement between the United States and Russia.
With South Africa's pebble bed modular reactor teetering on the edge of oblivion, what does the future hold for this once-celebrated reactor design?
In its latest threat, Pyongyang has vowed to enrich uranium for bomb-making purposes. An HEU bomb on the peninsula is a scary proposition, but is it realistic?
A mere 24 hours after Pyongyang conducted its second nuclear test, South Korea was already strengthening its defenses--a posture that's likely to continue into the foreseeable future.
It's been a tale of two reactions in South Korea--the public generally has remained calm while the government seems to want to respond to Pyongyang's latest provocation more aggressively.
For now, Islamabad seems safe from Taliban takeover. The bad news--that stability may not extend much longer into the future.
Like the rest of the world, Beijing rebuked North Korea for its recent nuclear test. But that doesn't mean China will be supporting harsher U.N. sanctions against Pyongyang anytime soon.
Pyongyang's second nuclear test has frustrated Japan, causing Tokyo to reexamine its defense policy and question whether the U.S. nuclear umbrella can keep it safe.
The early seismic numbers reveal that North Korea's latest nuclear test was bigger than its 2006 test but that the yield was still far short of a Hiroshima-type bomb.
Will North Korea's nuclear test force the Obama administration to make North Korea priority number one, or will it steadfastly unite the international community against Pyongyang?
After the author's recent trip to Pakistan, he's convinced that Islamabad's nuclear weapons are safe and that the country is more secure than media reports claim.
Former Eastern Bloc states that joined the EU were forced to close their Soviet-era nuclear plants. Ironically the move has pushed them back into Moscow's orbit.
Refurbished nuclear facilities could yield Pyongyang additional nuclear weapons, but the greatest risk remains that it would export nuclear materials or know-how.
The argument goes that if the U.S. Senate finally ratifies the Comprehensive Test Ban Treaty, other holdout nations such as India will follow suit. But don't hold your breath.
After a failed March vote, predicting who will be the IAEA's next director-general is murkier than ever.
While President Barack Obama has vowed "immediate" and "aggressive" ratification of the CTBT, securing its passage in the Senate promises to be anything but quick.
Tokyo's missile defense installations stand ready to shoot down any debris generated by North Korea's upcoming rocket launch. Whether they can is another matter.