• Protecting drinking water systems from deliberate contamination

    The importance of water and of water infrastructures to human health and to the running of the economy makes water systems likely targets for terrorism and CBRN (chemical, biological, and radionuclide) contamination. Reducing the vulnerability of drinking water systems to deliberate attacks is one of the major security challenges. An international project has developed a response program for rapidly restoring the use of drinking water networks following a deliberate contamination event.

  • Radiation dose passengers receive from airport scanners is low

    An independent task force examining X-ray backscatter scanners at LAX airport determines that that people absorb less radiation from airport X-ray backscatter scanner than they do while standing in line waiting for the scan.

  • Rapid, on-site detection of illegal cooking oils

    In recent years, illegal cooking oil incident in China caused serious food safety risks. Researchers have developed two rapid and convenient colorimetric detection methods of illegal cooking oils based on phase transfer technology.

  • Two men charged with planning an “X-ray weapon’’ to kill Muslim enemies of U.S., Israel

    Two men from upstate New York were charged Wednesday with a scheme to build an X-ray weapon to kill Muslim enemies of the United States and Israel. They planned the weapon to kill the designated targets with lethal radiation, and some of the targets were to be killed in their sleep. The indictment says the two wanted to build a powerful X-ray device that could be placed in a truck and driven near a target. The driver would park, leave the area, and activate the device, “killing human targets silently and from a distance with lethal doses of radiation.”

  • U.K. nuclear disaster exercise reveals worrisome lapses in emergency response

    Up to six times a year, U.K. nuclear weapons are transported in heavily guarded convoys between production facilities in Aldermaston and Burghfield in Berkshire, where the nuclear bombs are manufactured, and the Royal Naval Armaments Depot at Coulport on Loch Long in Argyll. The trips are required because scientists must regularly examine the 200 Trident missile warheads in order to make sure they are operationally reliable and properly maintained. Every three years, the U.K. Ministry of Defense (MoD) conducts a drill aiming to test how various agencies respond to an accident involving the convoy carrying the nuclear warheads. An internal report on the last drill notes many problems in the response to the simulated accident, including five-hour wait for weapons experts, confusion over radiation monitoring, and ambulance crews refusing to take contamination victims to hospitals.

  • New microfluidic chip useful in counterterrorism, water and food safety

    A new process for making a three-dimensional microstructure that can be used in the analysis of cells could prove useful in counterterrorism measures and in water and food safety concerns. Researchers developed a new microfabrication technique to develop three-dimensional microfluidic devices in polymers. Microfluidics deals with the performance, control, and treatment of fluids that are constrained in some fashion.

  • Airport baggage scanning: slow, steady pace yields better results

    Next time you are doing a slow burn in security screening at the airport, calm yourself with the assurance that a more deliberate baggage scanner may do a better job. Researchers find that systematic searching frees up memory to do a better job at scanning.

  • Detecting explosives, not toothpaste

    Researchers want airports, border checkpoints, and others to detect homemade explosives made with hydrogen peroxide without nabbing people whose toothpaste happens to contain peroxide. This is part of the challenge faced in developing a portable sensor to detect a common homemade explosive called a FOx (fuel/oxidizer) mixture, made by mixing hydrogen peroxide with fuels.

  • U.S. confirms: Assad used chemical weapons against Syrian rebels, civilians

    The Obama administration has informed Congress a few minutes ago that the U.S. intelligence community has determined that the Assad regime has used chemical weapons on several occasions against both rebel forces and Syrian civilians. The U.S. intelligence community says these attacks, each using small quantities of sarin gas, have killed about 150 Syrians.

  • Fast, reliable identification of pathogens

    Life-threatening bacterial infections cause tens of thousands of deaths every year in North America, but current methods of culturing bacteria in the lab can take days to report the specific source of the infection, and even longer to pinpoint the right antibiotic that will clear the infection. Researchers have created an electronic chip that can analyze blood and other clinical samples for infectious bacteria with record-breaking speed.

  • California’s San Onofre nuclear power plant retired due to safety concerns

    Southern California Edison (SCE) has decided it will retire the San Onofre nuclear power plant located on the California coast. The decision comes after officials debated for over a year whether the twin reactors could be safely restarted. The power plant is located in a populated area, with millions living near it.

  • Highly sensitive polymer detects IEDs

    A chemical which is often the key ingredient in improvised explosive devices (IEDs) can be quickly and safely detected in trace amounts by a new polymer created by a team of Cornell University chemists. The polymer, which potentially could be used in low-cost, handheld explosive detectors and could supplement or replace bomb-sniffing dogs.

  • France weighing military options after French lab confirms Syrian use of sarin gas

    Laurent Fabius, France’s foreign minister, said yesterday (Tuesday) that samples taken from Syria and tested in France confirm that sarin gas has been used by the Assad regime in several attacks in March and April. The U.K. Foreign Office said that samples from Syrian victims tested in British labs also confirmed the use of sarin. A UN investigative panel released its report yesterday, saying its experts had “reasonable grounds” to suspect small-scale use of toxic chemicals. Fabius said that France was not ruling out a military strike on the place where the gas is being stored.

  • Laser-driven neutrons to detect nuclear smuggling

    Researchers have successfully demonstrated for the first time that laser-generated neutrons can be enlisted as a useful tool in the war on terror, as Los Alamos shows first nuclear material detection by single short-pulse-laser-driven neutron source.

  • Fukushima-derived radioactivity in seafood poses minimal health risks

    Researchers find that the likely doses of radioactivity ingested by humans consuming fish contaminated by radioactive radiation escaping from the debilitated Fukushima reactors fish, are comparable to, or less than, the radiological dosages associated with other commonly consumed foods, many medical treatments, air travel, and other background sources.