• Researchers develop rapid method for water, air, and soil pathogen screening

    Researchers have developed a highly sensitive, cost-effective technology for rapid bacterial pathogen screening of air, soil, water, and agricultural produce in as little as twenty-four hours. “Rapid and reliable pathogen detection in field samples is critical for public health, security and environmental monitoring. Current methods used in food, water or clinical applications rely on labor and time-intensive culturing techniques while activities such as dairy farming, wastewater and runoff treatment necessitates real-time monitoring of pathogens in environment samples,” said one of the researchers.

  • Water security test bed to focus on bolstering municipal water security

    Water is the foundation for life. People use water every single day to meet their domestic, industrial, agricultural, medical, and recreational needs. After the September 2001 terrorist attacks, water system security became a higher priority in the United States. The Water Security Test Bed (WSTB) at Idaho national Laboratory can be used for research related to detecting and decontaminating chemical, biological, or radiological agents following an intentional or natural disaster. The WSTB will focus on improving America’s ability to safeguard the nation’s water systems, and respond to contamination incidents and to natural disasters.

  • FBI helps foil several plots to sell nuclear material in Moldova’s black market

    Over the past five years, four attempts by Russian gangs in Moldova to sell nuclear material have been thwarted by the FBI and Moldovan authorities. The most recent case was in February when a smuggler, who specifically sought a buyer from Islamic State, offered undercover agents a large amount of radioactive caesium. The would-be smuggler wanted €2.5 million for enough radioactive material to contaminate several city streets.

  • Animals have returned to Chernobyl

    In 1986, after a fire and explosion at the Chernobyl Nuclear Power Plant released radioactive particles into the air, thousands of people left the area, never to return. Now, researchers have found that the Chernobyl site looks less like a disaster zone and more like a nature preserve, teeming with elk, roe deer, red deer, wild boar, and wolves. The findings are a reminder of the resilience of wildlife.

  • Bomb detectors fraudster ordered to pay £1.2 million

    Gary Bolton, a convicted fraudster who made millions selling fake bomb detectors around the world, has been ordered by a court to pay more than £1 million. In August 2013 Bolton, 49, from Chatham in Kent, was sentenced to seven years in jail for the sale of more than 1,000 useless detectors that he claimed could track down bombs, drugs, ivory, and money. Bolton was one of several defendants convicted for their part in fake bomb detector scams. In 2013, James McCormick, a British businessman, was convicted of having made millions in profits from selling fake bomb detectors to Iraq, Georgia, and several other countries.

  • Airport X-ray screening systems comply with health and safety radiation exposure standard

    Machines that use advanced X-ray imaging technology to screen airport passengers comply with radiation exposure limits set by the American National Standards Institute/Health Physics Society (ANSI/HPS), says a new report from the National Academies of Sciences, Engineering, and Medicine. The report also finds that the machines adhere to the recommended safety mechanisms described in the ANSI/HPS standards to prevent overexposure to radiation in the event of a mechanical failure or deliberate tampering.

  • Clothing that guards against chemical warfare agents

    Recent reports of chemical weapons attacks in the Middle East underscore the need for new ways to guard against their toxic effects. Scientists report that a new hydrogel coating that neutralizes both mustard gas and nerve agent VX. It could someday be applied to materials such as clothing and paint.

  • TSA agents find record number of guns in carry-on luggage at airports

    TSA agents discovered 67 guns in carry-on luggage during the week which ended 17 September. The tally for the week broke an earlier record of 65 firearms found during one week in May 2013. TSAofficers found nearly 1,900 firearms in carry-on luggage between 1 January and 31 August 2015. This year is thus on track to see a 28 percent spike in the number of firearms found compared to the 2,212 guns — an average of about 40 a week — discovered by TSA agents in 2014.

  • X-ray Scanning Rover offers a new level of explosives detection

    From conflict zones to airports to sporting events, bombs pose dangers for innocent civilians as well as the bomb technicians who regularly risk their lives to investigate suspicious objects and render the devices safe. Technology solutions can help first responders to see hidden dangers. To this end, the DHS S&T’s First Responders Group (FRG) is developing the X-Ray Scanning Rover (XSR) to be a responder’s eyes. It quickly and accurately scans packages and bags for leave-behind improvised explosive devices (LBIED) while keeping responders out of harm’s way. Unlike most existing scanners that use pulsed X-ray energy for detection, the XSR robot features a continuous, fan-shaped operating X-ray beam, permitting a higher degree of penetration through dense packaging.

  • Small-scale nuclear fusion may be a new energy source

    Nuclear fusion is a process whereby atomic nuclei melt together and release energy. Because of the low binding energy of the tiny atomic nuclei, energy can be released by combining two small nuclei with a heavier one. Fusion energy may soon be used in small-scale power stations. This means producing environmentally friendly heating and electricity at a low cost from fuel found in water. Both heating generators and generators for electricity could be developed within a few years, according to researchers.

  • Fukushima disaster was preventable: Study

    The worst nuclear disaster since the 1986 Chernobyl meltdown never should have happened, according to a new study. Researchers distilled thousands of pages of government and industry reports and hundreds of news stories, focusing on the run-up to the Fukushima Daiichi disaster in 2011. They found that “arrogance and ignorance,” design flaws, regulatory failures, and improper hazard analyses doomed the coastal nuclear power plant even before the tsunami hit.

  • Testing radiation detection systems in harsh conditions

    Researchers from five laboratories and a private company recently spent two days in blistering 100 degree heat testing radiation detection technologies amidst cargo containers. The fifteen researchers demonstrated the feasibility of using gamma-ray and neutron imaging detectors to identify radioactive materials using the Lawrence Livermore National Laboratory’s (LLNL) cargo container stack testbed.

  • UN inquiry to determine who is responsible for chemical attacks in Syria

    Russia has withdrawn its objections to a UN investigation into identifying the culprits responsible for chemical attacks in Syria, allowing a probe to begin, UN diplomats said Thursday. For the last two years, Russia had insisted that a series of UN investigative teams sent to Syria would be limited to finding out whether or not chemical weapons had been used, but would be barred from identifying who was responsible for launching them.

  • Inspired by butterfly wings, scientists design a new gas sensor

    The unique properties found in the stunning iridescent wings of a tropical blue butterfly could hold the key to developing new highly selective gas detection sensors. The ground-breaking findings could help inspire new designs for sensors that could be used in a range of sectors, including medical diagnostics, industry, and the military. At present, reliable and cost-effective sensors for detection of small but meaningful gas leaks in a multitude of industrial processes remain an unmet environmental, health, and safety goal.

  • Upholding disarmament agreements with engineering

    Arms control agreements face a problem: how to ensure that countries with nuclear weapons abide by disarmament agreements. The linchpin of these agreements is being able to verify that the signers are following the rules — but the trick is for both sides, or a third party, to be able to police weapons in a way that doesn’t give out too much information about them, for example, how these weapons were built. An MIT project, called Zero Knowledge Warhead Verification, tackles this problem with a beam of light, a scrambler, and a detector.