• With Redesigned “Brains,” W88 Nuclear Warhead Reaches Milestone

    The W88 nuclear warhead entered the stockpile in late 1988 and is deployed on the Navy’s Trident II submarine-launched ballistic missile system onboard Ohio-class ballistic missile submarines. The weapon was beyond its original design life, and several updates were required to address aging issues and to maintain its current state of readiness.

  • Parasites Fight Chemical and Biological Weapons

    Harnessing parasites to help soldiers and first responders counter chemical and biological weapon attacks in war zones.

  • International Nuclear Forensics Group Examines Nuclear Security Challenges

    The Nuclear Forensics International Technical Working Group (ITWG) was established in 1995 when nuclear materials were being smuggled out of the former Soviet Union and into Europe. Last month the ITWG held its annual meeting virtually.

  • How Has the Terrorism Threat Changed Twenty Years After 9/11?

    The U.S. counterterrorism response to the September 11, 2001, attacks yielded some remarkable successes and disastrous failures in hunting al-Qaeda. The top terrorist threat today, though, is domestic rather than foreign.

  • What Went Wrong for the U.S. in Afghanistan

    The Biden administration’s decision to withdraw American troops from Afghanistan is an admission that the United States has failed in its costly war in Afghanistan. Why has the United States failed? Jason K. Dempsey, who was deployed to Afghanistan as part of the 2009 “surge,” writes that “Luckily for those…. wondering how all the heroism [of American soldiers in Afghanistan] led to an overall outcome in Afghanistan that fell far short of U.S. aspirations, there are two new books that seek to make sense of the war.”

  • Lethal Autonomous Weapons and World War III: It’s Not Too Late to Stop the Rise of “Killer Robots”

    Scientists are pretty good at warning of the dangers facing the planet. Unfortunately, society is less good at paying attention. Artificial intelligence researchers like me have been warning of the advent of lethal autonomous weapons systems, which can make life-or-death decisions without human intervention, for years.

  • Small Towns Should Focus on Resilience

    With heatwaves, bushfires, and floods, small towns and their surrounding communities have confronted a combination of successive disasters fueled by climate change. And it’s predicted to only get worse. “So, the challenge for all of us, but particularly areas at increasing risk of climate-fueled disasters, is to get ahead of what’s coming,” says one expert. “We need to ask: what we can do to reduce or even prevent some of these disasters from happening?”

  • Earthquake Forecasts a Step Closer to Reality

    Earthquakes — like lightning — strike unpredictably. For decades, scientists have struggled to reliably give forecasts for major earthquake hotspots, but now, an international team of scientists has embarked on a new initiative to do just that.

  • What is Pegasus? Explaining How the Spyware Invades Phones and What It Does When It Gets In

    Pegasus is a spyware that can stealthily enter a smartphone and gain access to everything on it, including its camera and microphone. Pegasus is designed to infiltrate devices running Android, Blackberry, iOS and Symbian operating systems and turn them into surveillance devices.

  • Sensor Detects When Firefighters' Protective Clothing No Longer Safe

    Firefighters risk their lives battling blazes, and aging protective gear can put them at even greater risk. Textiles scientist works with industry to develop a faster, easier way to detect damage from heat, moisture and UV light.

  • Ban Use of Affective Computing in Federal Law Enforcement

    Affective computing uses algorithms to analyze bodies, faces, and voices to infer human emotion and state of mind. Even though there clearly needs to be more research done on this technology, law enforcement agencies are starting to experiment with it to extract information, detect deception, and identify criminal behavior. Alex Engler says that President Biden should ban affective computing before it starts to threaten civil liberties.

  • For Forest Towns, 3 Wildfire Lessons as Dixie Fire Destroys Historic Greenville, California

    How can people prepare for a future that’s unlike anything their communities have ever experienced? The emergence of extreme fires in recent years and the resulting devastation shows that communities need better means to anticipate mounting dangers, and underscores how settlement patterns, land management and lifestyles will have to change to prevent even larger catastrophes. Our research team of landscape architects, ecologists, social scientists and computer scientists has been exploring and testing strategies to help.

  • Four Explanations for Why Europe Is Burning

    Barely halfway through summer, the area burned by wildfires raging through the Balkans, Italy, and the southeastern Mediterranean has already eclipsed yearly averages.

  • Innovative Approach to Find Victims Lost at Sea

    Researchers are completing a year-long project with the U.S. Coast Guard to develop an innovative and cost-effective approach to managing rescue operations at sea.

  • National Security Agencies Must Include Climate Risks and Their Analyses

    The Pentagon and other federal agencies were given a July deadline to draw up plans for potential climate risks, under an executive order by President Biden. Antonio Busalacchi and Sherri Goodman write that such plans are an essential first step, but the greater challenge for national security agencies is to continue to redirect their focus to changing climate conditions that pose a complex, two-pronged threat: social and political instability overseas and damage to U.S. infrastructure.