• Preventing nuclear terrorism

    Nuclear terrorism remains a real and urgent threat. Despite an array of mechanisms established to combat this threat, several serious problems persist, requiring relentless attention and actions by the United States, Russia, and other responsible nations. These problems include continuing nuclear security vulnerabilities in a number of countries and the continued incidents of illicit trafficking in nuclear materials, radioactive sources, and the various components.

  • Reducing security threats from explosives

    Researchers, as part of the Awareness and Localization of Explosives-Related Threats center (ALERT), a DHS Center of Excellence, are working on ways to detect explosives and neutralize their impact. The researchers are developing portable detectors as well as larger systems to scan for explosives. Some technologies will analyze the spectrum of light shining through vaporized samples; others will analyze solid residues.

  • Syria’s chemical weapons can be destroyed within nine months: experts

    Weapons experts from the United States and Russia say most of Syria’s chemical weapons stockpile are kept as unweaponized liquid precursors, and thus could be neutralized in a short period of time without the risk that toxins could be stashed away by the regime for future use, or stolen by terrorists. A confidential assessment by the United States and Russia concludes that Syria’s entire arsenal could be destroyed in about nine months, assuming that Syrian officials fully cooperate with the weapons inspectors.

  • Robust fourth-generation nuclear fuel withstands high-temperature accident conditions

    A safer and more efficient nuclear fuel is on the horizon. A team of researchers at the U.S. Department of Energy’s Idaho National Laboratory (INL) and Oak Ridge National Laboratory (ORNL) have reached a new milestone with tristructural-isotropic (TRISO) fuel, showing that this fourth-generation reactor fuel might be even more robust than previously thought.

  • Iran indicates willingness to rethink nuclear program in exchange for sanction relief

    As part of a series of steps designed to present post-election Iran as more pragmatic, President Hassan Rouhani and his advisers indicated they would be willing to consider curbs on Iran’s nuclear program in exchange for relief from the crippling economic sanctions imposed on Iran. Some Western experts say that all these steps are more than mere cosmetic changes, while skeptics note that Obama has reached out to Iran before, with no results. Veterans of past nuclear negotiations with Iran also noted that it is likely that Rouhani’s team may not yet fully understand the kinds of concessions that the Islamic republic would be required to make to have the most painful economic sanctions lifted.

  • Improving nuclear waste repositories

    How fast will iodine-129 released from spent nuclear fuel move through a deep, clay-based geological repository? Understanding this process is crucial. Countries worldwide consider underground clay formations for nuclear waste disposal because clay offers low permeability and high radionuclide retention. Even when a repository is not sited in clay, engineered barriers often include a compacted buffer of bentonite, a common type of clay, to improve waste isolation.

  • UN inspectors' repot on gas attack points to Assad’s elite military units

    Russia may say publicly that it does not know who launched the deadly 21 August gas attack on two Damascus neighborhoods, but the Russians must have had an inkling: Russia’s UN ambassador agreed to have an international team of weapon inspectors sent to Syria to investigate the 21 August attack on one condition: the inspectors’ mandate was narrowed to verifying that chemical weapons were used, but specifically prohibited the inspectors from assigning responsibility to the attack. Russia’s effort to shield Assad has resulted in a report, submitted Monday to the UN Security Council, which does not explicitly name the Syrian regime as the party launching the attack, but details buried in the report point directly at elite military formations loyal to Assad.

  • The side of Homeland Security you won't see on TV

    By Louise Lerner

    The way the Department of Homeland Security is often portrayed in popular culture — surveillance and secret agents — leaves out a crucial aspect of its role. It also works on technology to detect attacks as they are happening, and helps federal and local governments prepare for all kinds of disasters, from hurricanes to accidental chemical spills to anthrax attacks. Argonne Laboratory engineers contribute to this effort, helping local and state governments form emergency plans, run drills for a pandemic flu outbreak in the city of Chicago, and analyzed ways to enhance security at plants and factories across the country.

  • A new generation of odor-releasing materials for training dogs

    Traditionally, the training of bomb-sniffing dogs has been a hazardous job, but newly developed odor-releasing materials could take the risk out of that work. Scientists are seeking to patent a novel system that can capture scents and release them over time.

  • Smartphone “microscope” can detect a single virus, nanoparticles

    Your smartphone now can see what the naked eye cannot: A single virus and bits of material less than one-thousandth of the width of a human hair. Researchers have created a portable smartphone attachment that can be used to perform sophisticated field testing to detect viruses and bacteria without the need for bulky and expensive microscopes and lab equipment. The device weighs less than half a pound.

  • U.S. still has 3,100 tons of chemical weapons to be destroyed

    Last weekend’s U.S.-Russia agreement on Syria’s chemical weapons has put on hold a U.S. strike on Syria. The pause may allow a reflection on the fact that the United States possesses one of the world’s largest chemical arsenals. Sixteen years after a treaty banning of chemical weapons went into effect, the Unites States has 3,100 tons stored in Colorado and Kentucky.

  • History of explosives highlighted in museum exhibit

    For more than seventy years, Los Alamos National Laboratory has been a frontrunner in explosives research, development, and applications. To highlight the Laboratory’s work in the field of explosives, the Bradbury Science Museum is opening a new exhibit, titled “The Science of Explosives.”

  • Experts question ambitious Syria chemical weapons agreement

    The announcements in Geneva by Secretary of State John Kerry and Foreign Minister Sergey Lavrov were bold: President Bashar al-Assad has a week to provide detailed, accurate, and comprehensive information about Syria’s entire chemical weapons program: research labs, production facilities, test sites, chemical storage depots, and munitions kept by every military unit. Experts say that the tight timetable the agreement requires for disclosure of stockpile, destruction of production facilities, and the destruction of the chemical weapons themselves, would not only set a speed record, but that that it cannot be accomplished even with Syria’s full cooperation.

  • Syria’s chemical program, inventory

    The Syrian chemical weapons program began in the 1970s when the Hafez al-Assad regime purchased chemical munitions from the Soviet Union. In the 1980s, Syria launched a broad program of acquiring the materials, products, and knowledge necessary to set up an autonomous chemical weapons production capacity. In the nearly four decades of acquisition, research, development, and production, Syria has amassed what experts consider to be the world’s largest chemical weapons stockpile, consisting of about 1,000 tons of chemical agents and precursor chemicals.

  • Children living close to nuclear power plants do not have higher risk of developing leukemia

    Young children who live near nuclear power plants do not have a greater risk of developing childhood leukemia or non-Hodgkin Lymphoma according to new research. Researchers conducted a study of almost 10,000 children under five years of age who were diagnosed with leukemia or similar cancers in Britain between 1962 and 2007. The scientists measured the distance from the nearest nuclear power plant both at birth and when diagnosed with childhood leukemia or non-Hodgkin lymphoma, and found that there was no apparent extra risk living near a nuclear power plant.