• Bioengineered Potato Plant Detects Gamma Radiation

    A researcher in the University of Tennessee Herbert College of Agriculture has developed a potato plant that can detect gamma radiation, providing reliable indications of harmful radiation levels without complex monitoring technologies. The natural radiation sensor is affordable, too.

  • Preparing U.S., Partners for Radiological Response

    After the September 11th attacks, security professionals worried that terrorists might detonate a “dirty bomb” – an explosive device enhanced with radiological source materials. Responders for this type of event had to be trained.

  • Los Alamos National Lab Safely Shipping Radiological and Hazardous Waste Off-Site

    A substantial amount of Los Alamos National Lab’s radiological and hazardous waste from years past was permanently disposed of at off-site facilities — a move in step with the Lab’s goal to mitigate hazards to workers, the community, and the environment while carrying out its national security mission.

  • Chlorine Is a Highly Useful Chemical That’s Also Extremely Dangerous − Here’s What to Know About Staying Safe Around It

    Chlorine is extremely toxic, and because it’s ubiquitous in many industries across the U.S., it often is released in chemical accidents and spills. As with other household chemicals, it is very important to understand its risks, read labels before using it, store it in its original container in a secure place and dispose of it safely.

  • Detecting Nuclear Materials Using Light

    Sandia materials scientist developed the state of the art technology known as Organic Glass Scintillators for radiation detection. Organic Glass Scintillators emit light in the presence of radiation.

  • Striving for a More Secure World

    PNNL experts work with international partners to tackle cross-border biological and chemical threats. PNNL’s border security focus can be traced to the breakup of the Soviet Union in the early 1990s. U.S. policy makers became concerned about the security of nuclear material in the newly independent states of the former U.S.S.R.

  • Striving for a More Secure World

    PNNL experts work with international partners to tackle cross-border biological and chemical threats. PNNL’s border security focus can be traced to the breakup of the Soviet Union in the early 1990s. U.S. policy makers became concerned about the security of nuclear material in the newly independent states of the former U.S.S.R.

  • New Zealand: Firm Found Guilty Over Volcano Disaster

    The court said Whakaari Management failed to sufficiently “assess risk” to visitors or provide them with protective gear, leading to the death of 22 people.

  • Securing Ports of Entry, One Scan (or Thousands) at a Time

    Every year, millions of cargo containers make their way to U.S. ports of entry via maritime, roadways, and railways. According to U.S. Customs and Border Protection (CBP), more than 100,000 commercial cargo trucks cross U.S. POEs daily. To combat the threat of human and drug trafficking, it is imperative that their methods for cargo screening and physical examination are as thorough as they are efficient.

  • Happy 60th Birthday to Vela, Watchman for Nuclear Detonations

    Sixty years ago last week, on Oct. 16, 1963, the United States launched a pair of satellites whose primary purpose was to determine the feasibility of using satellites to detect nuclear detonations in outer space. The satellites were part of the Vela program, initiated in 1959 to provide a nuclear detonation detection capability to verify compliance with nuclear treaties. On Sept. 27, 1984, the last of the Vela satellites were turned off.

  • Testing Seafloor Fiber Optic Cable as an Earthquake Early Warning System

    One of the biggest challenges for earthquake early warning systems (EEW) is the lack of seismic stations located offshore of heavily populated coastlines, where some of the world’s most seismically active regions are located. Researchers show how unused telecommunications fiber optic cable can be transformed for offshore EEW.

  • German Nuclear Phaseout Leaves Radioactive Waste Problem

    While Germany searches for a permanent storage facility for its nuclear waste, it risks sitting on piles of dangerous waste for decades. The problem drains public finances by hundreds of millions of euros every year.

  • Poisoning Critics: The Kremlin's Preferred Method of Dealing with Dissidents By Monir Ghaedi

    A recent report indicates the Kremlin might be responsible for the poisoning of Russian journalists in exile. The cases appear to fit into a broader pattern of targeting dissidents: these recent poisonings are but the latest in a series of poisonings targeting Kremlin opponents and critics. Poison has long been a weapon used by security services in Russia to silence prominent political dissidents.

  • Nuclear Engineer Uses Machine Learning on Weapons Testing Images to Understand Fallout

    After WWII, the U.S. wanted to better understand what happened after a nuclear weapon was detonated. Researchers conducted tests in the southwestern U.S. and the Pacific Ocean and recorded those experiments on film. Scientists used the original reel-to-reel films to manually measure data from the blasts. Today, nuclear forensic scientists combine modern computational techniques with the historical records of nuclear tests to obtain precious insights into the physics of these type of events, which are otherwise hard to study experimentally.

  • Natural or Not? Identifying Genetically Engineered Organisms

    Ever since gene editing became feasible, researchers and health officials have sought tools that can quickly and reliably distinguish genetically modified organisms from those that are naturally occurring. Following the emergence of SARS-CoV-2, the world at large became aware of this need. Now, such tools are being built. The development of new tools to detect modified bacteria, viruses, and cells has bolstered national security against biological threats.