• Thorium to play limited role in U.K. future power supply

    Worldwide, there has for a long time been a sustained interest in the thorium fuel cycle and presently there are several major research initiatives which are either focused specifically on the thorium fuel cycle or on systems which use thorium as the fertile seed instead of U-238; the U.K. National Nuclear Laboratory examined the topic and concluded that thorium has theoretical advantages but that these benefits are often overstated; as a result, thorium fuel cycle at best has only limited relevance to the United Kingdom as a possible alternative plutonium disposition strategy and as a possible strategic option

  • Nuclear waste-burning technology to make nuclear energy more appealing

    Toxic nuclear waste is stored at sites around the United States, and the need to store nuclear waste is widely considered to be a major disadvantage associated with nuclear energy; physicists have been granted a U.S. for patent for a novel fusion-fission hybrid nuclear reactor which would use nuclear fusion and fission together; the invention could drastically decrease the need for any additional or expanded geological repositories, making nuclear power cleaner and more viable

  • Radiation-enabled computer chips allow low-cost security imaging systems

    With homeland security on high alert, screening systems to search for concealed weapons are crucial pieces of equipment; these systems, however, are often prohibitively expensive, putting them out of reach for public spaces such as train and bus stations, stadiums, or malls, where they could be beneficial; until now

  • Many Americans exposed to drinking water-related gastrointestinal illness

    More than 100 million people in the United States rely on water piped into homes, schools, and businesses from public water systems that get their water from wells, rather than lakes, rivers, and other above-ground sources; much of that water either is not disinfected at all or is not adequately disinfected to kill disease-causing viruses

  • DHS submersible Pluto mimics the real narco-subs

    In the early 1990s, South American drug cartels came up with a new tactic to transport narcotics destined for the United States: small, radar-dodging, self-propelled, semi-submersibles (SPSSs); better to address the submersible problem, DHS Science and Technology Directorate created its own submersible and called it Pluto, after the planet which is difficult to spot

  • Questions raised about cost, reliability of BioWatch upgrade

    One year ago, DHS said a new contract for Biowatch, a system for detecting biological attacks on the United States, would be awarded in May 2012 and would cost an estimated $3.1 billion during its initial five years of operation; now DHS has decided to postpone the plans due to concerns about cost and reliability

  • Netanyahu cancels security cabinet meeting on Iran after leaks

    Israel’s prime minister, Benjamin Netanyahu, scheduled a 2-day marathon meeting of Israel’s security cabinet for Tuesday and Wednesday, with an 8-hour session planned for each day; the 2-day meeting was called for a thorough and comprehensive – and probably decisive — discussion of Iran’s nuclear weapons program and what should Israel do about it; the speakers on Tuesday included the directors of Israel’s military and civilian intelligence agencies; early Wednesday, Netanyahu abruptly canceled the meeting’s second session because of leaks from Tuesday top-secret meeting session appeared in the Israeli press 

  • As shoe-scanning devices fail, passengers continue to remove their shoes

    In the last five years the U.S. government has tested several scanning devices for detecting explosives and other weapons concealed in the shoes of airline passengers; after spending millions of dollars on these devices, TSA has concluded that the detection systems are ineffective; the result: removing shoes at security check points is going to be a part of air travel for the foreseeable future

  • The costs, benefits, and efficiency of aviation security measures

    The threat of terrorist attack on American aviation has made the system the focus of intense security efforts, but it is difficult to determine if the benefits outweigh their cost; efficient security policy — a focus on getting the most security for the least cost — should be the priority in an era of fiscal austerity, says a new RAND report

  • Los Alamos lab responds to radiological incident

    The Los Alamos National Laboratory said it is investigating the inadvertent spread of Technetium 99 by employees and contractors at the Lujan Neutron Scattering Center at the Los Alamos Neutron Science Center (LANSCE), a multidisciplinary accelerator facility used for both civilian and national security research; multiple tests indicate no health risks to public or employees

  • Near-instantaneous DNA analysis

    Polymerase chain reaction (PCR) is an indispensible technique allowing researchers and clinicians to produce millions of copies from a single piece of DNA or RNA for use in genome sequencing, gene analysis, inheritable disease diagnosis, paternity testing, forensic identification, and the detection of infectious diseases; PCR for point-of-care, emergency-response, or widespread monitoring applications needs to be very fast — on the order of a few minutes; this has now been achieved

  • Antibiotic residues in sausage meat may promote pathogen survival

    Antibiotic residues in uncured pepperoni or salami meat are potent enough to weaken helpful bacteria that processors add to acidify the sausage to make it safe for consumption; sausage manufacturers commonly inoculate sausage meat with lactic-acid-producing bacteria; by killing the bacteria that produce lactic acid, antibiotic residues can allow pathogenic bacteria to proliferate

  • DHS using Boston subway system to test new sensors for biological agents

    Bioterrorism is nothing new, and although medicines have made the world a safer place against a myriad of old scourges both natural and manmade, it still remains all too easy today to uncork a dangerous cloud of germs; DHS’s Science and Technology Directorate (DHS S&T) has scheduled a series of tests in the Boston subways to measure the real-world performance of new sensors recently developed to detect biological agents

  • Glass offers a better way of storing U.K. nuclear waste

    Researchers have shown, for the first time, that a method of storing nuclear waste normally used only for High Level Waste (HLW) could provide a safer, more efficient, and potentially cheaper solution for the storage and ultimate disposal of Intermediate Level Waste (ILW)

  • Electronic nose detects airborne toxins down to the parts per billion level

    Research create an electronic nose device with applications in agriculture, industry, homeland security, and the military; the device can detect small quantities of harmful airborne substances