• Uranium found to be mobile in a natural wetland

    Because they are known to mop up pollutants, artificial wetlands are considered to be an efficient strategy to contain waterborne uranium. Studying a natural wetland near a former uranium-mining site in the French region of Limousin, however, researchers have found that under certain circumstances, uranium can be partly remobilized into the surrounding water. The researchers show how it becomes mobile again by binding to tiny metallic and organic compounds with a little help from ambient bacteria.

  • Guards at U.K. nuclear weapons facility slept on the job, skipped routine patrols

    Police officers of the U.K. Ministry of Defense police, assigned to guard Britain’s nuclear weapons, are under investigation after it has been reported that they had slept on the job and failed to complete routine patrols at a nuclear weapons facility. The Atomic Weapons Establishment (AWE) in Burghfield, Berkshire, is the location of the complex final assembly of nuclear weapons, and also where the U.K. nuclear warheads are maintained and decommissioned.

  • Survey of deep-sea chemical munitions dump off California finds no chemical weapons

    Since the Second World War, U.S. nautical charts have shown seven “chemical munitions dumping areas” along the Pacific Coast between San Francisco and the Mexican border. Little or no information, however, is available about the amount, location, or nature of the materials that were dumped at most of these sites. Researchers from the Monterey Bay Aquarium Research Institute (MBARI) conducted a detailed survey of one supposed deep‐water dump site off Southern California, and found that it contained no chemical munitions. The researchers conclude that not all sites marked as chemical munitions dumps may actually have been used for this purpose.

  • U.S. “bomb library” marks 10-year anniversary

    It has been ten years since the FBI established the Terrorist Explosive Device Analytical Center (TEDAC), and since that time the multi-agency operation — sometimes referred to as America’s bomb library — has become an important tool in the nation’s fight against terrorism. Since its creation in 2003, TEDAC has examined more than 100,000 IEDs from around the world and currently receives submissions at the rate of 800 per month. Two million items have been processed for latent prints — half of them this year alone.

  • India-Pakistan nuclear war would lead to world-wide famine: study

    An India-Pakistan nuclear war may see the use of about 100 Hiroshima-size bombs – about half of India and Pakistan’s nuclear arsenals. A new study says that a nuclear exchange on such a scale would “probably cause the end (of) modern industrial civilization as we know it” by subjecting about two billion people to the risk of starvation, and causing massive economic and social disruptions far away from the theater of war. Among the consequences of a nuclear exchange: Chinese winter wheat production could decline by 50 percent during the first year and by more than 30 percent over ten years; there would be a 21 percent decline in Chinese middle-season rice production during the first four years and an average 10 percent decline in the following six years; corn and soybean production in the United States would decline by 10 percent on average for ten years.

  • Air transportation data helps identify, predict pandemics

    Computational model demonstrates how disease spreads in a highly connected world. The computational work has led to a new mathematical theory for understanding the global spread of epidemics. The resulting insights could not only help identify an outbreak’s origin but could also significantly improve the ability to forecast the global pathways through which a disease might spread.

  • Lawmakers: Old plastic gun law has not kept pace with technology

    The U.S. House of Representativesvoted last Tuesday to renew the 25-year old Undetectable Firearms Actwhich prohibits firearms that can evade metal detectors and X-ray machines. Law enforcement agencies say that developments in 3D printing make the law insufficient, and lawmakers who proposed amending the Act say that the only way to make such guns detectable is to require that at least one component of the firing mechanism in a plastic gun contain enough metal to be detectable in a magnetometer — and that that component be undetachable. The NRA opposes these requirements, saying that they would infringe on the Second Amendment rights of citizens.

  • Airport scanner vendor failed to disclose use of Chinese components

    Recently TSA cancelled a $60 million contract with Rapiscan Systems, a manufacturer of anatomically revealing airport security scanners, after Rapiscan was found to be using unapproved Chinese components in its scanners – and failing to disclose this fact to TSA. Rapiscan, in bidding on the contract, submitted a list of U.S.-made components used in the scanners to the agency, as required by law. After the company received an approval of that list – and the $60 million contract – it ordered the same components from a Chinese company — the Shanghai Advanced Non-Destructive Testing – instructing the Chinese company to label the Chinese-made components with the same part numbers as the originally approved, U.S.-made components, apparently in an effort to make it more difficult for TSA inspectors to notice the illegal switch. Members of the House Homeland Security Committee, charging that the use of Chinese components made the machines susceptible to sabotage, disruption, or spying, want to know whether TSA was aware of Rapiscan’s shenanigans.

  • Airport screeners miss unusual – and possibly dangerous -- items

    A smartphone app that turns gamers into airport baggage screeners is showing that finding weapons and other illegal items is not all that easy, even when you are looking for them. Researchers analyzed data from searches of twenty million virtual suitcases in the game Airport Scanner created by Kedlin Co. and found that users failed in most cases to identify objects that occurred only rarely. The reason: Commonly found objects may be crowding out identification of the unusual items.

  • Better earthquake early-warning system

    Geophysicists have developed a new way of calculating the magnitude of an imminent earthquake by making better use of measurements of the compression waves produced early in the event. They say that the technique could be used to create a better early-warning system for earthquakes that could be used worldwide.

  • Stolen nuclear material found intact in Mexico

    Mexican police yesterday said they have found a truck, a white 2007 Volkswagen cargo vehicle, which was stolen Monday by thieves who apparently were not aware that it was carrying toxic radioactive medical material from a hospital to a disposal site. The cobalt-60 the truck was carrying could be used to build a “dirty bomb.” The IAEA said that more than 100 incidents of thefts and other unauthorized activities involving nuclear and radioactive material are reported to the agency annually.

  • Yasser Arafat was not poisoned: French investigators

    French scientific and medical experts rule out possibility that Palestinian leader was poisoned by radioactive polonium-210. A Russian medical team examining tissue samples taken from Arafat’s body reached the same conclusion three months ago. The conclusions of a Swiss medical team were more ambiguous. Leaders of the Palestinian Authority began accusing Israel of poisoning Arafat even before he died, as his health was rapidly declining. Israel has consistently denied the accusation, describing it as “unreasonable and unsupported by facts.”

  • Y-12 security breach update: Old nun awaits sentencing while costs of new Y-12 facility not to be released until 2015

    On 28 July 2012, three senior citizens, led by an 83-year old nun, easily breached the supposedly impregnable security systems protecting the Y-12 National Security Complex at Oak Ridge, Tennessee. The three peace activists wondered the grounds of the maximum security facility for a while before being noticed by security personnel. While the three aging protesters are awaiting sentencing, the two companies — Bechtel Corporation and Babcock and Wilcox – which were responsible for designing and implementing security at Y-12, have been named as the primary construction contractors for planning and design of the new uranium processing facility (UPF) to be built at Y-12.

  • Arafat may have been poisoned, but what is polonium?

    A Swiss forensic report of the exhumed remains of ex-Palestinian leader Yasser Arafat last month suggested polonium poisoning may have been the cause of death – but what is polonium, and why is it so deadly? Polonium is a highly radioactive heavy metal. It is arguably the most lethal known material. Although it has some minor industrial uses it is best known for links with possible assassinations. It is also used to produce neutrons in the core of nuclear weapons. Polonium is element 84 in the periodic table, and all of its isotopes are radioactive. Their half-lives vary between a few millionths of a second to 103 years.

  • Modeling earthquakes and explosives reactions

    Researchers are developing mathematical models that can help in reducing rock fracturing and soil liquefaction caused by natural or man-made disasters. The outcomes of the research could improve safety levels in the mining and petroleum industries, and play a critical role in the ability of civil infrastructure to withstand disasters such as earthquakes and explosions.