• Predicting the effect of a nuclear weapon dropped on an urban area

    Current models of nuclear effects use wind direction and wind speed to draw a predicted cone-shape area of fall-out; new research results show that these models are too simple in some ways — for instance, they do not include the complex dynamics of wind movements around buildings, which can concentrate fall-out preferentially in certain areas

  • Pakistan installs radiology scanner in Islamabad

    There are more than 160 points of entry into Islamabad but four main entry points for goods carrying vehicles; the Pakistani government buys radiation detectors from China to prevent terrorists from smuggling a nuclear or dirty bomb into the city; worries about the health effects of the strong radiation the scanner emit

  • TSA agents monitor U.S. ground transportation for nuclear, biological threats

    DHS, the FBI, and TSA quietly monitor the U.S. ground transportation system for nuclear and biological weapons; TSA agents carry portable detection sensors fan out aboard trains and buses and at transit hubs

  • DHS misses deadline for certifying new radiation detectors

    Back in June, the head of DHS’s nuclear monitoring division said the agency would sign off this fall on two congressionally mandated certifications for the Advanced Spectroscopic Portal monitor system; the testing and evaluation of these innovative nuclear detection systems have not yet been completed, though; the new machines are designed to not only detect radiation but identify the nature of its source, thus eliminating time-consuming secondary inspections to determine whether a material is dangerous

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  • Radiological monitoring system along U.S.-Canada border completed

    The last of the 600 radiological monitors along the U.S.-Canada border has been deployed (at Trout River, New York, on the Quebec border); DHS says it is now scanning 100 percent of all vehicle traffic entering from Canada and Mexico — plus all mail and courier packages from Mexico and a further 98 percent of all arriving seaborne container cargo — for radioactive threats

  • Los Alamos lab's toxic waste seeps toward New Mexico's water sources

    Radioactive debris has been found in canyons that drain into the Rio Grande, but officials at the Los Alamos National Laboratory say there is no health risk; to comply with New Mexico’s clean up orders, the lab has installed about 300 monitoring wells and gauges, contaminated soil is being removed from canyon bottoms, wetlands are being planted, and small dams built to arrest the flow of polluted storm water

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  • NRC rejects Westinghouse's new nuclear reactor design

    In what must be seen as a setback for the nuclear power industry, the NRC said that a key component of Westinghouse’s new reactor design might not withstand events like earthquakes and tornadoes

  • A terrorist nuclear attack on the U.S. is a "preventable catastrophe"

    Graham Allison assesses the likelihood of a terrorist nuclear attack on the United States — and offers the “Doctrine of Three No’s” to prevent such an attack; the central points of this doctrine: “No unsecured nuclear weapons and weapons-usable material”; “no new national capabilities to enrich uranium or reprocess plutonium” and “no expansion of the nuclear club beyond its current 8.5 members”

  • A first: Criminals steal nuclear material, than demand ransom for its return

    Criminals in Argentina steal cesium-137 from a drilling company, then demand $500,000 and threaten “to make this city glow” if they did not get the money

  • NRC investigates crack at Crystal River nuclear plant

    The Crystal River containment structure is about 42 inches thick, contains steel support tendons, and is lined with steel plates; workers found a crack in the concrete about nine inches from the outer surface

  • Imagining new threats -- and countering them

    DHS air transport security lab is in the business of imagining new threats — then developing the technologies to counter them; their dream? To build a “tunnel of truth” in each airport lined with hidden sensors, scanners, and rays; passengers would get zapped and sniffed as they passed, and would not need to take off their shoes, toss their liquids, or anything else

  • Radioactive rabbit poo found at plutonium production site

    A clean-up survey at the Hanford site in Washington State, where military-grade plutonium was produced during the early years of the cold war, discovered radioactive jackrabbit droppings around the site; the rabbits burrowed in the area and discovered the tanks in which nuclear waste is stored; they liked the salty taste of the radioactive cesium and strontium salts, so they began drinking and licking them routinely

  • ASE shows cargo and vehicle inspection system

    American Science and Engineering, Inc. combines its patented Z Backscatter technology with High Energy Transmission to offer enhanced scanning system for vehicles, cargo; system may be used in drive-by mode to scan stationary objects, or in portal mode to scan vehicles as they drive past the system

  • Raytheon delivers mobile radiation detection system

    Raytheon delivers advanced SUV-based radiation detection system to Florida’s Department of Transportation

  • High-tech nuke detectors check Puget Sound small vessels for WMD

    Pacific Northwest National Laboratory coordinated activities with the Coast Guard and Customs and Border Protection, and many other state, local, and tribal agencies for the two-day nuclear detection exercise