The UN Security Council says there has been a nuclear test in North Korea.
North Korea carried out a third nuclear test underground at a remote location in the northeastern part of the country, prompting new fears and international condemnation.
An assessment of the technological reasons why North Korea may soon conduct another nuclear test.
North Korea has vowed to continue expanding and strengthening its 'self-defensive military power' to cope with sanction pressures.
North Korea plans to use long-range missile technology to launch a satellite later this month despite international condemnation. There are also troubling signs that the isolated country is preparing for a third nuclear test.
While it has been known since early 2004 that the illicit proliferation network headed by A.Q. Khan of Pakistan supplied the nuclear programs of Iran, North Korea, and Libya, certain questions have not yet been resolved.
On the twentieth anniversary of the closure of Kazakhstan's nuclear site Semipalatinsk, it is important to recognize the role the former weapons testing facility plays in strengthening the verification regime of the Comprehensive Test Ban Treaty.
The 2011 conference focused on new actors and new agendas, reflecting the need to develop cooperative responses to challenges being posed by changing technology, distributions of political power, interest in nuclear energy, and security conditions in key regions.
The United States has neither the intention nor need to renew nuclear testing, yet its failure to ratify the CTBT undermines both the credibility of U.S. leadership and the ability of the United States to improve the detection and deterrence of testing by others.
Nuclear nonproliferation cannot be considered utopian since we know what can and should be done to achieve it. The harder question, however, is whether we can muster the political will to create the necessary geo-political and security conditions to achieve common nonproliferation goals.