• Underwater Nuclear Drone: North Korea’s Nuclear Madmen

    One remarkably irresponsible claim by Kim Jong Un is North Korea’s announced testing of an underwater drone that it states can carry a nuclear weapon, able to infiltrate enemy waters and create a deadly radioactive plume of water. Such a detonation could severely contaminate ships and port cities with intense radioactive fallout mixed with water.

  • How Many Guns Are There in the U.S.?

    We’ve heard for years that there are more guns in the U.S. than people, but a precise accounting remains elusive. Federal legislation that would track gun sales or establish a nationwide handgun registry has been proposed — to much resistance from the gun lobby. Pinpointing the number of guns in circulation could help us better understand the relationship between gun sales and gun violence.

  • Guns Now Kill More Children and Young Adults Than Car Crashes

    For the past few decades, motor vehicle crashes were the most common cause of death from injury— and the leading cause of death in general—among children, teenagers, and young adults in the U.S. But now, firearms exceed motor vehicle crashes as the leading cause of injury-related death for people ages one to 24.

  • Iran Could Make Fuel for Nuclear Bomb in Less Than 2 Weeks: Gen. Milley

    Iran could make enough fissile material for a nuclear bomb in “less than two weeks” and could produce a nuclear weapon in “several more months,” according to the Chairman of the Joint Chiefs of Staff General Mark Milley. The 2015 nuclear deal signed by the Obama administration increased Iran’s “breakout” time – that is, the time required to produce one nuclear weapon once a decision to do has been made — to about twelve months, but the Trump administration’s 2018 decision unilaterally to withdraw from the deal has allowed Iran to reduce the breakout time to about two weeks.

  • Survey of Iran’s Advanced Centrifuges - March 2023

    Iran continues to deploy advanced centrifuges at its three enrichment facilities at Natanz and Fordow in violation of the limitations outlined in the Joint Comprehensive Plan of Action (JCPOA). InFebruary 2021, Iran stopped providing declarations about its production and inventory of centrifuge rotor tubes, bellows, and rotor assemblies, and blocked the IAEA access to IAEA cameras recording activities in the enrichment facilities. In June 2022, Iran removed the IAEA cameras from the enrichment facilities, so no recordings exist. Consequently, the IAEA has had no ability to take inventory.

  • The Iraq Invasion, Twenty Years Later

    Last week marked the 20th anniversary of the United States-led invasion of Iraq. Code-named “Operation Iraqi Freedom” by the George W. Bush administration, the goal was to eliminate weapons of mass destruction, topple Saddam Hussein, and remake Iraq into a democracy. What lessons should we learn from the war and its aftermath?

  • Channeling NEXTGEN TV to Help Responders Answer the Call

    A natural disaster strikes, vehicles collide on a snowy highway, a 5-alarm fire blazes through the night. For first responders, every second counts. DHS S&T is collaborating on a new effort to arm agencies with a digital alerting system that taps into NEXTGEN public TV broadcasting technologies to deliver emergency dispatches faster.

  • Hard-Right Social Media Activities Lead to Civil Unrest: Study

    Does activity on hard-right social media lead to civil unrest? With the emergence and persistent popularity of hard-right social media platforms such as Gab, Parler, and Truth Social, it is important to understand the impact they are having on society and politics.

  • Preventing Fires and Explosions

    Lines in natural gas grids have to be maintained and serviced regularly. This entails using flares to vent the natural gas. With FlareSimulator, research scientists at the Fraunhofer Institute for Factory Operation and Automation IFF have developed an assistive tool that calculates the correct distance of flares to houses, trees and other nearby objects. This makes it easy to maintain minimum distances and prevent potential hazards and explosions.

  • “He Has a Battle Rifle”: Police Feared Uvalde Gunman’s AR-15

    In previously unreleased interviews, police who responded to the Robb Elementary shooting told investigators they were cowed by the shooter’s military-style rifle. This drove their decision to wait for a Border Patrol SWAT team to engage him, which took more than an hour.

  • Western “Self-Deterrence” is Aiding Putin’s War of Aggression

    Putin’s only viable strategy is to outlast Western patience by pursuing a bloody and brutal war of attrition. But the West should not relent in its support of Ukraine, becasue “Stopping attempts to change borders by force is the right thing to do, as the founders of the United Nations agreed almost 80 years ago. It is also a powerful signal to other ambitious autocrats who are eyeing their neighbors and dreaming of annexation through force,” Erlingur Erlingsson and Fridrik Jonsson write.

  • Ignition Experiment Advances Nuclear Stockpile Stewardship Mission

    When scientists at Lawrence Livermore National Laboratory (LLNL) achieved fusion ignition at the National Ignition Facility (NIF) on Dec. 5, 2022 — an extraordinary scientific breakthrough that was decades in the making — the primary mission and driving goal behind the experiment that day was stockpile stewardship science.

  • Ben Thomas: Spotlighting Careers in Nuclear Nonproliferation

    The goal of Ben Thomas of the Department of Energy’s Oak Ridge National Laboratory is not only to bring universities and colleges from across the U.S. into the nonproliferation network, but also to significantly increase the number of minority-serving institutions, or MSIs, participating in the National Nuclear Security Administration Defense Nuclear Nonproliferation University Consortia.

  • Surge in Arms Imports to Europe, While U.S. Dominance of the Global Arms Trade Increases

    Imports of major arms by European states increased by 47 percent between 2013–17 and 2018–22, while the global level of international arms transfers decreased by 5.1 percent. The United States’ share of global arms exports increased from 33 to 40 percent while Russia’s fell from 22 to 16 percent.

  • Taiwan’s High-End Semiconductors: Supply Chain Interdependence and Geopolitical Vulnerability

    What are the geopolitical implications of Taiwan’s dominance in global semiconductor production? How would the peaceful annexation or outright invasion of Taiwan by China affect the United States, its allies and partners, and the global economy? What are the United States’ options for mitigating or reversing the unfavorable effects of either unification scenario?