• CLOAK & DAGGERWho Was the Cold War “Umbrella Assassin?”

    By Christopher Nehring

    A new Danish documentary sheds some light on the shadowy figure of Francesco Gullino, alias “Agent Piccadilly,” the prime suspect in the 1978 murder of Bulgarian dissident Georgi Markov in London.

  • RAIL SAFETYIn a Growing Petrochemical Hub, the East Palestine Derailment Triggers “an Uneasy Feeling”

    By Eve Andrews

    The Upper Ohio River Valley has been layered in industrial pollution for centuries, and residents are fed up.

  • NUCLEAR WEAPONSNorth 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.

  • IRAN’S NUKESIran Enriching Uranium to Near-Weapon-Grade 84%: IAEA

    IAEA inspectors found uranium particles enriched up to nearly 84 percent in Iran’s underground Fordow uranium enrichment site. The 83.7 percent enriched uranium is just below the 90 percent purity needed for nuclear weapons. Experts say that Iran would need no more than 10-14 days to use the material to produce an atomic bomb.

  • RAIL SECURITYCan You Tell Whether a “Bomb Train” Is Coming to Your Town? It’s Complicated.

    By John McCracken

    This information about trains carrying hazardous materials is out there, but it is not always readily accessible. With the derailment of the Norfolk Southern train receiving international attention, more railroad communities are now asking what is traveling through their backyard, and how to avoid the fate of East Palestine, Ohio.

  • RAIL SAFETYOhio Chemical Spill Draws Focus on Railroad Dangers

    By Alistair Walsh

    The U.S. has one of the most extensive rail networks in the world, but diminishing safety standards puts people and the environment at risk. The latest accident has drawn sharp focus onto the safety standards of the highly profitable freight rail industry and its prolific lobbying against regulation.

  • RAIL SAFETYThe Train Derailment in Ohio Was a Disaster Waiting to Happen

    By John McCracken

    The derailment of a freight train filled with volatile chemicals in rural Ohio earlier this month captured the headlines, but researchers and chemical spill experts say it’s a situation that plays out far too often across the country. Trains carry hazardous chemicals everyday. They’re also dangerously unregulated.

  • AIRPORT SECURITYImproving the Speed and Safety of Airport Security Screening

    By Anne McGovern

    For decades, airports around the nation have employed sensitive canine noses to detect concealed explosives. While this four-legged fleet has been effective and efficient, researchers have yet to build a mechanical method that can mimic their abilities. Researchers seek ways to build non-contact screening methods that can detect concealed explosives at airports.

  • HAZARDOUS MATERIALTrain Derailments Get More Headlines, but Truck Crashes Involving Hazardous Chemicals Are More Frequent and Deadly in U.S.

    By Michael F. Gorman

    Highway crash of hazmat-carrying trucks do not draw national attention the way train derailments do, or trigger a flood of calls for more trucking regulation like the U.S. is seeing for train regulation. Truck crashes tend to be local and less dramatic than a pile of derailed train cars on fire, even if they’re deadlier. Federal data shows that rail has had far fewer incidents, deaths and damage when moving hazardous materials in the U.S. than trucks.

  • HAZARDOUS MATERIALSHow Dangerous Was the Ohio Chemical Train Derailment? An Environmental Engineer Assesses the Long-Term risks

    By Andrew J. Whelton

    Headaches and lingering chemical smells from a fiery train derailment in East Palestine, Ohio, have left residents worried about their air and water – and misinformation on social media hasn’t helped. The slow release of information after the derailment has left many questions unanswered about the risks and longer-term impact.

  • HAZARDOUS MATERIALSTrain Cars Which Derailed in Ohio Were Labeled Non-Hazardous

    By John McCracken

    Nearly two weeks after a train carrying hazardous chemicals derailed in rural Ohio, questions still linger about the lasting effects of the incident and the speed at which residents were returned to their homes. What we do know is that the train cars were marked as non-hazardous, and thus officials weren’t notified that the train would be crossing through the state.

  • WILDFIRESStoking Wildfire Resilience in Oregon

    Monitoring allows all the moving pieces of an emergency response to launch into action and for decision makers to have as much time as possible to assess and mitigate the threat. This is certainly true when it comes to wildfires. S&T is piloting smoke detection sensors ahead of the 2023 wildfire season.

  • NUCLEAR PROLIFERATIONDiscoveries in Phases of Uranium Oxide Advance Nuclear Nonproliferation

    The word “exotic” may not spark thoughts of uranium, but investigations of exotic phases of uranium are bringing new knowledge to the nuclear nonproliferation industry.

  • COASTAL CHALLENGESNew Generator Rolls into Ocean Energy

    Tsunamis, hurricanes, and maritime weather are monitored using sensors and other devices on platforms in the ocean to help keep coastal communities safe—until the batteries on these platforms run out of juice. The nanogenerator harnesses the energy of the ocean to power sensors and more.

  • SURVIVING NUCLEAR ATTACKSHow to Shelter from a Nuclear Explosion

    There is no good place to be when a nuclear bomb goes off. Anything too close is instantly vaporized, and radiation can pose a serious health threat even at a distance. Researchers simulated an atomic bomb explosion from a typical intercontinental ballistic missile and the resulting blast wave to see how it would affect people sheltering indoors.