Proliferation Security Initiative Meeting Held in Washington, D.C.

Alissa Tabirian
NS&D Monitor
2/5/2016

The U.S. State Department last Wednesday hosted a Proliferation Security Initiative (PSI) meeting in which midlevel officials from the United States and 70 partner states gathered to discuss collective nonproliferation efforts. More than 100 PSI member states have committed to taking actions to counter the proliferation of weapons of mass destruction. 

At the meeting, participating governments reviewed progress made since the last PSI meeting in 2013, set goals for the PSI’s 15th anniversary meeting to be hosted by France in 2018, and discussed new developments in proliferation and interdiction, the State Department said. Participants also “promoted more regular and robust PSI activities, such as workshops and exercises; encouraged outreach to additional states and the public; underscored the importance of combatting proliferation financing; and shared expertise and resources to build capacity for conducting interdictions,” it said.

Thomas Countryman, assistant secretary of state for international security and nonproliferation, said at the meeting, “PSI is functioning exactly as was intended, and as it should continue to do so.” Countryman said many of the issues discussed at PSI meetings, including transshipment controls and proliferation financing, “have now entered the larger international agenda.”

“Our proactive work has promoted a global effort toward taking actions to stop WMD-proliferation-related shipments; influenced U.N. Security Council resolutions aimed at preventing proliferation; improved national authorities; and promoted new international agreements through which countries can prohibit the use of commercial ships for WMD trafficking,” Countryman said. He also read a statement from the White House that lauded member states’ efforts through the PSI and said that “if we work in a spirit of common purpose, a day will come where everyone around the globe will live free from fear of these tools of destruction.”

 

 

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NNSS conducts high-explosive experiment for non-proliferation purposes

The National Nuclear Security Administration conducted a “subsurface, non-nuclear chemical high-explosive experiment” at the Nevada National Security Site aimed at improving U.S. detection of low-yield nuclear explosions, the agency said Sept. 30.

The experiment was conducted in the P Tunnel in Area 12 at NNSS and involved chemical high explosives and radiotracers, according to the release. Data gathered during the test will be used to validate scientific models and refine algorithms supporting U.S. nuclear explosion detection capabilities, the agency said.

The experiment was particularly focused on improving the ability to detect a “decoupled” nuclear explosion, in which a device is detonated inside a large underground chamber to reduce the seismic signals that reach monitoring sensors. NNSA said the United States previously determined that China conducted a decoupled nuclear test at its Lop Nur test site in June 2020.

“[I]t takes nuclear expertise to detect nuclear activities and experiments like these ensure America remains unmatched in detection,” NNSA Administrator Brandon Williams said. “The Trump Administration has made it clear that the United States will lead from a position of strength.”

Researchers deployed a broad range of sensors during the experiment, including accelerometers, seismometers, infrasound and electromagnetic sensors, as well as chemical and radiotracer samplers and meteorological equipment.

NNSA said the experiment supports the Donald Trump administration’s broader effort to maintain U.S. capabilities for detecting foreign nuclear testing. The agency described the work as part of ongoing efforts to ensure the United States can identify nuclear activities even when an adversary attempts to reduce the signals produced by an underground explosion.

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