• Weapon-grade fissile material in the world could yield 126,500 nuclear bombs

    The nations of the world together have in their possession about 1.6 million kilograms of highly enriched uranium (HEU) and about 500,000 kilograms of plutonium; it takes only about 25 kilograms of HEU or eight kilograms of plutonium to make a crude nuclear bomb; thus the weapon-grade material now available in the world could yield 64,000 HEU-based bombs and 62,500 plutonium-based bombs

  • Shortcomings in U.S. safeguards of weapon-grade nuclear materials

    Reviews ordered by President Obama have found weaknesses in the U.S. government’s stewardship of its nuclear cache, from weapons to the ingredients and classified information that go into them; before opening the nuclear summit earlier this week, Obama said that “Unfortunately, we have a situation in which there is a lot of loose nuclear material around the world”; this is true for the United States as well

  • Five full-body scanners to be used in Chile to catch drug traffickers

    Chile is deploying full-body scanner at border crossing along its border with Peru to prevent drug smuggling; during a 1-year test period, two million people were scanned, and 51 kilograms of cocaine, carried by 42 different border-crossers, seized

  • NJIT physicist: Terahertz imaging is the ultimate defense against terrorism

    THz imaging systems have an inherent advantage over millimeter wave imaging systems owing to the intrinsically improved spatial resolution that one can achieve with the shorter wavelength THz systems (typically 300 micrometer wavelength) compared to longer wavelength millimeter wave systems; instruments using terahertz imaging are widely used in laboratories and have shown some limited use in commercial applications — but a THz imaging system for security screening of people has not yet reached the market; the NJIT THz device has great promise

  • NYC takes extra measures to protect subway from terror

    The New York City’s subway system is a porous, 24-hour-a-day system with 468 stations and an average of 5 million riders a day; NYC security officials insist the city remains the nation’s No. 1 terror target, and they devote extra resources to protecting Wall Street, the Empire State Building, Brooklyn Bridge. and other high-profile potential targets; their biggest worry — spurred by the recent bombing in Moscow and a foiled plot in New York — is the subway

  • Pure samples of telltale xenon-133 gas help detectors sniff out nuclear tests

    Nuclear explosions produce an excited form of the radioactive gas xenon-133, called xenon-133m, in which the atomic nucleus is boosted to a higher-energy state, but it is not known exactly how sensitive detectors are to this form because there has been no way to make pure samples of xenon-133m with which to test them; until now

  • Duke University team develops nuclear terrorism detection tool

    If terrorists detonate a nuclear bomb or a dirty bomb in a city, first responders rushing to the scene would have to sort out the thousands of victims exposed to the harmful effects of radiation to see who needs more immediate attention and who can wait; current tests for radiation poisoning take a number of days to complete, which is too slow; Duke University researchers develop a device which uses genomic technology to capture molecular snapshots of genes or patterns of genes that are “turned on” or “turned off” in the body’s response to radiation; this allows emergency crews to determine the severity of radiation poisoning in under 30 minutes

  • TSA: Tablets and Netbooks need not be taken out of their cases to be screened

    TSA allows that electronic items smaller than the standard sized laptop need to be removed from a bag or a case at an airport security check-point to be scanned; TSA says this applies to the Apple iPad and netbooks, as well as the Amazon Kindle, Barnes & Noble nook, and other e-book readers

  • How safe are U.S. subways?

    In a report last year, the GAO said: “Certain characteristics of mass transit systems, such as multiple access points and limited barriers to access, make them inherently vulnerable to terrorist attack and therefore difficult to secure; high ridership, expensive infrastructure, economic importance, and location in large metropolitan areas or tourist destinations also make them attractive targets for terrorists because of the potential for mass casualties and economic damage”

  • Senator Collins: U.S. airport full-body scanners inferior to those deployed in Amsterdam

    Maine’s junior U.S. senator says the full-body scanners DHS is deploying in the wake of the Christmas Day airline bomb threat are not the best devices available

  • Uranium-mining nations ignore UN-mandated measures on nuclear terror

    In the aftermath of the 9/11 terror attacks and the 2004 uncovering of the Pakistan-based A. Q. Khan nuclear smuggling network, the United States pushed Resolution 1540 through the UN, which required states to impose strict security measures on nuclear materials and report on the progress they have made in this regard; many states have not bothered to report — almost all them in Africa; especially worrisome is the situation in Niger, the Democratic Republic of the Congo, Zambia, Malawi, and the Central African Republic

  • Camgian awarded DARPA UAV-UGS fusion contract

    Today’s soldiers rely on advanced ground and airborne sensors to identify, track, and monitor critical targets; as stand-along platforms, UAVs and unattended ground sensors (UGS) have operational limitations such as endurance, coverage, and target resolution; Camgian is teaming up with BAE Systems to exploit the fusion of these assets in an automated network architecture to provide powerful ISR capability

  • Tularemia bacteria detected in Columbus, Ohio; no bioterror attack suspected

    BioWatch sensors in Columbus, Ohio, last week picked up higher than normal presence of the bacteria tularemia — a bacteria which may be used in bioterror attacks; Columbus Public Health officials continued to emphasize that people are not at risk and there is no suspicion that bioterrorism was attempted here

  • New technology enables machines to detect microscopic pathogens in water

    Detecting common pathogens in drinking water soon may no longer be bottle-necked under a laboratory microscope; Texas A&M researchers found a way to substitute humans with automatic image analysis systems

  • Students design innovative wastewater treatment process for removing pharmaceuticals

    More and more pharmaceuticals end up in countries’ water supply; four Canadian chemical engineering students have designed an advanced wastewater treatment system which would remove 90 percent of pharmaceuticals and endocrine-disrupting compounds (EDCs) using commercially available technology