Between 1944 and 1994, the U.S. government produced 99.5 metric tons of plutonium for use in an estimated 70,000 nuclear weapons. Today, roughly 80% of the U.S. nuclear arsenal has been discarded, and the United States is struggling to dispose of the surplus plutonium. Currently, a total of 61.2 tons of plutonium is declared excess […]
National Security
Fact Sheet: The Nuclear Triad
Updated May 12, 2025 The U.S. nuclear arsenal comprises thousands of nuclear weapons and three methods of delivery, sometimes called “legs.” Warheads can be launched from the air via strategic bombers carrying gravity bombs or cruise missiles, from the sea by submarines holding ballistic missiles, or from underground silos housing intercontinental ballistic missiles. Collectively, these […]
Fact Sheet: Preventing a Dirty Bomb: Why Radiological Security Matters
Updated March 2021 Nuclear terrorism poses a grave threat to human life. Though less devastating than a nuclear weapon, a terrorist incident featuring radiological material is far more likely due to the abundance of these materials and a widespread lack of adequate security. Consequently, physically protecting isotopes that could be used for a nuclear weapon […]
Fact Sheet: F-35 Joint Strike Fighter: Costs and Challenges
Updated July 2021 What Is It? The F-35, known as the Lightning II, is a Joint Strike Fighter (JSF, emphasis added) because contracts exist for the United States Air Force, Marine Corps, and Navy, as well as eight NATO countries and five non-NATO partners. The fighter has three variants, one of which (F-35A) will have […]
