• Geologists develop way to monitor covert nuclear tests in the Middle East

    Not only is it difficult to identify exactly where an explosion takes place, but it is especially challenging to differentiate the seismic waves generated by nuclear explosions from those generated by earthquakes, volcanic activity, and mine collapses; geologists develop improved seismic model for monitoring nuclear explosions in Middle East

  • WikiLeaks: Yemen radioactive stocks "easy al-Qaeda target"

    Yemeni official told U.S. diplomats that the lone sentry standing watch at Yemen’s national atomic energy commission (NAEC) storage facility had been removed from his post, and that the facility’s only closed circuit TV security camera had broken down six months previously and was never fixed; “Very little now stands between the bad guys and Yemen’s nuclear material,” the official warned, in a cable dated 9 January this year sent from the Sana’a embassy to the CIA, the FBI, and the department of homeland security; when told of the Yemeni nuclear storage problem, Matthew Bunn, a Harvard University nuclear terrorism expert, said: “Holy cow. That’s a big source. If dispersed by terrorists it could make a very nasty dirty bomb capable of contaminating a wide area”

  • Hope for terahertz: laser operates at higher temperatures than thought possible

    Terahertz rays — radiation between microwaves and infrared rays on the electromagnetic spectrum — are a promising means of detecting explosives, but they have proven hard to generate cost effectively. So far, solid-state lasers — the cheap, miniature type of laser found in CD players — have been unable to produce terahertz rays unless they are super-cooled, which makes them impractical for mass deployment; now a group of researchers report a solid-state terahertz laser that operates at nearly twice the temperature that putative proportionality would have predicted

  • Medical isotopes no longer require weapons-grade uranium

    Highly enriched uranium (HEU) is used in nuclear weapons, but it is also used to make the radioisotopes that are injected in tiny quantities into people to diagnose and treat disease; indeed, making medical isotopes is a time-honored excuse for enriching uranium, if you want to build nuclear weapons but do not want to admit you are doing so (this is the cover Iran is using for its bomb-oriented enrichment program); South Africa’s Pelindaba reactor is now producing medical treatment-oriented molybdenum-99 (Mo-99) made from low-enriched uranium

  • ICx Technologies: comprehensive, layered approach to security

    At the recent ASIS exhibition and seminar, Homeland Security Newswire took the time to walk through the ICx Technologies booth and speak to some of their subject matter experts; CommandSpace® & ThreatSense™, solutions which provide a comprehensive, layered approach to perimeter security and chemical, biological, radiological and nuclear security for critical facilities, respectively, were on display

  • A woman wearing only black underwear gets hour-long airport security search

    An Oklahoma woman tried to avoid being subjected to an enhanced pat-down at the Oklahoma City airport by showing up for the flight wearing only her underwear; the fact that she was wearing black knickers and a black bra did not make a difference, though: after traces of nitrate were found on her body, she was given an enhanced search, which made her miss her flight to Phoenix

  • Harvard law students sue TSA over pat-downs, full-body scanning

    Two Harvard law students sue TSA, seeking to rein in use of full-body scans and pat-downs at airports; this is at least the sixth suit filed against the TSA since the agency put the enhanced screening procedures into widespread use following the so-called underwear bomber’s unsuccessful attempt to blow up a plane last Christmas with explosives hidden beneath his clothes; the pat-downs, which include “prodding and lifting of genitals and buttocks,” is so intrusive that, “if done non-consensually, would amount to sexual assault in most jurisdictions,” the Harvard students’ complaint says

  • Third lawsuit filed over TSA airport screening

    A Colorado attorney has asked a federal judge to order the Transportation Security Administration (TSA) to abandon its airport screening procedures for U.S. citizens; the suit claims that the patdowns the plaintiff, his two daughters, ages 9 and 15, and a family friend were subjected to in San Diego were “disgusting, unconscionable, sexual in nature” and in violation of the Constitution’s protections against unreasonable searches; nationally, at least two other lawsuits have been filed over the TSA’s new procedures; public opinion appears to be shifting against TSA’s “enhanced patdowns,” even as support for full-body scanning appears to remains high

  • Versatile terahertz technology could help aircraft to land

    Terahertz scanners detect a type of high-frequency electromagnetic radiation emitted by anything with temperatures higher than around 10 kelvin; it can penetrate dry, non-metallic materials such as clothing or sand, but is absorbed by water and metal; terahertz thus makes for very accurate airport scanners — but the technology can also be used to help aircraft land in poor visibility or power high-bandwidth communication systems

  • Napolitano says scanners may be used for trains, subways, and boats

    DHS secretary Janet Napolitano says that full-body scanners may be deployed in train stations, on subway platforms, and in marinas; experts point out that terrorists would not necessarily need to board a train to do damage: train graffiti is one indication how easy it to access parked trains — and trains roll on miles and miles of exposed track in open landscapes

  • Full-body scanner privacy concerns could be easily solved

    A U.S. government scientists involved in developing the full-body scanner says privacy concerns can be easily addressed by adding a simple algorithm to the scanners’ computer code; the algorithm distorts the body image into “grotesque” shapes without degrading the scanner’s detection capabilities

  • Police radar can identify suicide bombers

    The radar guns police use to spot speeding motorists fire microwave pulses at a car and measures the Doppler shift of the reflected signal to calculate its velocity; researchers found that the strength and polarization of the reflected signal — the “radar cross section” — can also measure the reflected signal created by the most common arrangements of looped wiring typically used by suicide bombers

  • Tungsten-lined undies protect naughty bits from radiation

    A Colorado company offers an attractive line of tungsten-lined undies, aimed, the company says, to protect “the traveling public, airline, medical, and security professionals from radiation generated by security and medical imaging equipment”; business is booming

  • Full-body-scan "opt-outs" at U.S airports at normal rate

    The organizers of the airport screening “National Opt-Out Day” hoped to exploit the American public’s anger at, and dissatisfaction with, the current state of affairs — anger that found expression earlier this month in the midterm elections — for a spectacular demonstration which would paralyze domestic air-travel during the busy Thanksgiving travel period: they called on travelers to opt-out of full-body scanning, thus forcing TSA screeners to pat them down, bringing air travel to a halt; the organizers failed to reckon with two set of numbers: fewer than 3 percent of travelers receive pat-downs, and the vast majority of Americans — as much as 80 percent — approve of full-body scanners being used at U.S. airports; the result: the stunt has failed, and the number of travelers opting out of full-body scans is not higher than normal

  • Spotting illicit nuclear activity from a distance

    French scientists unveil a plan to place antineutrino detectors off the coast of rogue nations suspected of operating clandestine nuclear reactors; their idea is to turn a supertanker into an antineutrino detector by kitting it out with the necessary photon detectors and filling it with 10^34 protons in the form of 138,000 tons of linearalkylbenzene (C13 H30); the plan is to sink the tanker in up to four kilometers of water off the coast of a rogue state, and the supertanker would then watch for the telltale signs of undeclared antineutrino activity