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Understanding Plants Improves Wildland-Fire Modeling in Uncertain Future
Drought and warmer temperatures make vegetation dynamics crucial to fire behavior and effects. A new conceptual framework for incorporating the way plants use carbon and water into fine-scale computer models of wildland fire provides a critical first step toward improved global fire forecasting.
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High-Fidelity Simulation Offers Insight into 2013 Chelyabinsk Meteor
On the morning of Feb. 15, 2013, a small asteroid exploded over Chelyabinsk, Russia, sending a loud shockwave and sonic boom across the region, damaging buildings and leaving around 1,200 people injured. Meteoric events are natural disasters and, just like any other natural disaster, we can do more to be prepared. “They are not high-probability events, but we shouldn’t dismiss them as science fiction either,” says one scientist.
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Spy Balloon Controversy Focuses Attention on Western Nuclear Missile Facilities
Experts believe the Chinese balloon downed over the Atlantic coast this month was snooping on U.S. missile defenses. Part of the landscape for a half-century, they are headed for a costly refresh in an era of rising global tensions.
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Places of Worship Linked with More Neighborhood Crime in Washington, D.C.
A statistical analysis of areas near more than 700 houses of worship in Washington, D.C. found that these areas are associated with higher levels of violent and property crime—even after accounting for other factors commonly linked with crime.
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Australian Government Needs to Go ack to Basics to Build an Australian Rare-Earths Industry
China has moved well beyond an aspiration to monopolize the production of rare earths. It aims for leadership in the production of the full range of goods making use of rare earths—from electric cars to wind turbines, MRI scanners, lasers and rocket motors.
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Next Generation 911 Interoperability
An estimated 240 million calls are routed to first responders every year via our country’s 911 system. It is critical that responders and operators have access to the best tools and resources available so that they can effectively answer these calls quickly and accurately and keep our communities safe. New testing and certification program, laboratory will improve the functionality of our national 911 system.
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12 Days: The Time Iran Needs to Produce Enough Weapon-Grade Uranium for a Nuclear Weapon
Iran can now break out and produce enough weapon-grade uranium for a nuclear weapon in 12 days, using only three advanced centrifuge cascades and half of its existing stock of 60 percent enriched uranium. This breakout could be difficult for inspectors to detect promptly, if Iran took steps to delay inspectors’ access.
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North Korea’s Nuclear Tests Expose Neighbors to Radiation Risks
Tens of thousands of North Koreans and people in South Korea, Japan, and China could be exposed to radioactive materials spread through groundwater from an underground nuclear test site. North Korea secretly conducted six tests of nuclear weapons at the Punggye-ri site in the mountainous North Hamgyong Province between 2006 and 2017.
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Garland Would Not Object to Designating Wagner a Foreign Terrorist Organization
Founded in 2014, the Wagner Group is run by Yevgeny Prigozhin, a sanctioned oligarch with close ties to Russian President Vladimir Putin. With an estimated 50,000 fighters in Ukraine, the majority recruited from Russia’s prisons, the paramilitary force has become a veritable arm of the Russian military in Ukraine.
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U.S. Creates New Antisemitism Task Force
Four out of 10 Jews in the US feel less secure than they did a year ago. Faced with an uptick in antisemitism, the White House responds with an action plan.
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Three Ways to Prevent School Shootings, Based on Research
We study the circumstances that lead to violence in which an attacker picks a target – like a person, group, or school – in advance. We find that the same patterns of concerning behavior emerge among the perpetrators, but that’s not all. We also find that there are often many opportunities to intervene with the perpetrator before the tragedy that peers, family members, school staff, law enforcement officials, and others miss.
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The U.S. Needs to Ditch Its America-First Approach to Critical Minerals
More and more countries with advanced economies have begun to prioritize the supply and value chains for critical minerals and rare-earth elements because of their links with advanced and low-emissions technologies. In some countries, governments have responded to the critical minerals challenge by adopting a new version of economic nationalism. But unilateral responses will not produce secure or reliable supply chains. Indeed, economic nationalism may actually aggravate the problem.
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Havana Syndrome Not Caused by Directed-Energy Weapons: U.S. Intelligence
In 2016 in Havana, Cuba’s capital, a growing number of U.S. diplomats reported symptoms of unexplained ailment, and over the next five years, employees in many other U.S. embassies complained about identical symptoms, which included dizziness, nausea, headaches, ringing ears, and disorientation. A comprehensive investigation by several agencies of the U.S. intelligence community has now concluded that the symptoms of what came to be called the Havana Syndrome were not the result of an adversary nation using directed-energy or radiation weapons.
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Directed Energy Weapons Shoot Painful but Non-Lethal Beams – Are Similar Weapons Behind the Havana Syndrome?
The latest episodes of so-called Havana syndrome, a series of unexplained ailments afflicting U.S. and Canadian diplomats and spies, span the globe. The cause of these incidents is unknown, but speculation in the U.S. centers on electromagnetic beams.
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AI Nuclear Weapons Catastrophe Can Be Avoided
There is a growing concern that emerging AI features will only increase the potential for disaster through the possibility of semiautonomous or fully autonomous nuclear weapons. Noah Greene writes that “As the Soviet-era Col. Petrov case kindly taught us, without a human firmly in control of the nuclear command-and-control structure, the odds of disaster creep slowly toward an unintended or uncontrolled nuclear exchange.”
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More headlines
The long view
Canada’s Biosecurity Scandal: The Risks of Foreign Interference in Life Sciences
In July 2019, world-renowned biological researchers Xiangguo Qiu and Keding Cheng were quietly walked out of the Canadian government’s National Microbiology Lab (NML). The original allegation against them was that Qiu had authorized a shipment to China of some of the deadliest viruses on the planet, including Ebola and Nipah. Then the story seemed to go away—until now.
A Return to U.S. Casualty Aversion
The 9/11 Wars as aberrations: After the extended, tragically costly, and fundamentally absurd aberrations caused by the overreaction to 9/11, a more limited American military approach appears to be back—and perhaps is even more embraced than in the post‐Vietnam decades.
A New Way to Detect Radiation Involving Cheap Ceramics
The radiation detectors used today for applications like inspecting cargo ships for smuggled nuclear materials are expensive and cannot operate in harsh environments, among other disadvantages. Work by MIT engineers could lead to plethora of new applications, including better detectors for nuclear materials at ports.
Tantalizing Method to Study Cyberdeterrence
Tantalus is unlike most war games because it is experimental instead of experiential — the immersive game differs by overlapping scientific rigor and quantitative assessment methods with the experimental sciences, and experimental war gaming provides insightful data for real-world cyberattacks.