Download the podcast on iTunes, Google Play, Stitcher or SoundCloud. Contrary to popular belief, the first nuclear explosion in human history took place not in Japan, but in New Mexico. This episode dives into that test and explains why Congress is threatening progress made on nuclear arms control. To listen to other podcast episodes, click here.
Fact Sheet: The Limited Test Ban Treaty (LTBT)
The Limited Test Ban Treaty (LTBT) (also known as the Partial Test Ban Treaty) is a multilateral treaty banning explosive nuclear testing or “other nuclear explosions” in the atmosphere, outer space, and underwater. The treaty only permits underground nuclear testing if the test does not cause radioactive debris to be present outside the jurisdiction of […]
Fact Sheet: The Comprehensive Test Ban Treaty (CTBT)
Updated January 2025 The Comprehensive Test Ban Treaty (CTBT) is a multilateral agreement that prohibits the explosive testing of nuclear weapons. The CTBT opened for signatures on September 24, 1996, but the agreement is still in the ratification stage. The United States has signed, but has not yet ratified the treaty. The United States conducted […]
North Korea’s Five Nuclear Tests
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Fact Sheet: North Korea’s Fifth Nuclear Weapons Test
The Facts: At 9:00am local time (8:30pm EST) on Friday, September 9, the U.S. Geological Survey reported seismic activity of 5.3 magnitude strength originating in North Korea. This is North Korea’s largest test to date. North Korean state media announced that the country had conducted a “nuclear explosion test.” This is North Korea’s fifth nuclear […]





