• WiFi can detect weapons, bombs, chemicals in bags

    Ordinary WiFi can easily detect weapons, bombs and explosive chemicals in bags at museums, stadiums, theme parks, schools and other public venues, according to a new study. Researchers  demonstrated how this low-cost technology could help security screening at public venues like stadiums, theme parks and schools.

  • New first-responder safety, efficiency systems on the way

    Two homeland security technologies will be developed jointly by American and Israeli companies to increase the safety and efficiency of first-responders — law enforcement, firefighters and emergency medical services —  after getting funding from the Israel-U.S. Binational Industrial Research and Development (BIRD) Foundation. The technologies will build advanced technologies for victim location and radio communication.

  • Climate change, sea level rise to cause more devastating tsunamis worldwide

    As sea levels rise due to climate change, so do the global hazards and potential devastating damages from tsunamis, according to a new study. Even minor sea-level rise, by as much as a foot, poses greater risks of tsunamis for coastal communities worldwide.

  • Using data analytics to target human smugglers

    Human smuggling is big business. The financial cost can be as high as a few thousand dollars to cross the border from Mexico to the United States, while immigrants from China might pay tens of thousands for their cross-Pacific journey. Some estimates put illegal crossings at 350,000 per year—and that’s just coming over the U.S.-Mexican border. DHS S&T’s Igloo data analytics software program is currently in use by select units of U.S. Immigration and Customs Enforcement (ICE) Homeland Security Investigations (HSI).

  • Climate change and wildfires – how do we know if there is a link?

    By Kevin Trenberth

    Once again, the summer of 2018 in the Northern Hemisphere has brought us an epidemic of major wildfires. These burn forests, houses and other structures, displace thousands of people and animals, and cause major disruptions in people’s lives. To many people, it has become very clear that human-induced climate change plays a major role by greatly increasing the risk of wildfire. There is huge complexity and variability from one fire to the next, and hence the attribution can become complex. The way to think about this is from the standpoint of basic science – in this case, physics: Global warming does not cause wildfires, but it exacerbates the conditions which make wildfires more likely, thus raising the risk of wildfire.

  • What are coastal nuclear power plants doing to address climate threats?

    By John Vidal

    Flooding can be catastrophic to a nuclear power plant because it can knock out its electrical systems, disabling its cooling mechanisms and leading to overheating and possible meltdown and a dangerous release of radioactivity. At least 100 U.S., European and Asian nuclear power stations built just a few meters above sea level could be threatened by serious flooding caused by accelerating sea-level rise and more frequent storm surges. More than 20 flooding incidents have been recorded at U.S. nuclear plants since the early 1980s. A number of scientific papers published in 2018 suggest that climate change will impact coastal nuclear plants earlier and harder than the industry, governments, or regulatory bodies have expected, and that the safety standards set by national nuclear regulators and the IAEA are out of date and take insufficient account of the effects of climate change on nuclear power.

  • RoboCup 2018: Testing methods used to evaluate rescue robots

    Since 1997, several continents have played host to an international soccer tournament. No, not the World Cup — the RoboCup. Robots of all shapes and sizes test their “metal” in the world’s favorite sport. Engineers and fans from across the globe have gathered to watch hunks of autonomous steel try to nudge a ball into a miniature net.

  • Disaster relief: Can AI improve humanitarian assistance?

    The unique topic of artificial intelligence (AI) for humanitarian assistance and disaster relief (HA/DR) was in the spotlight last week, as leading minds from academia, industry and the federal government met to discuss how modern technology can help victims of disasters around the globe.

  • Blocking sunlight to cool Earth won't reduce crop damage from global warming

    Injecting particles into the atmosphere to cool the planet and counter the warming effects of climate change would do nothing to offset the crop damage from rising global temperatures, according to a new analysis. “Shading the planet keeps things cooler, which helps crops grow better. But plants also need sunlight to grow, so blocking sunlight can affect growth. For agriculture, the unintended impacts of solar geoengineering are equal in magnitude to the benefits,” said the study’s lead author.

  • High- and low-tech solutions for bomb disposal

    To ensure bomb techs are on the cutting edge of technology as they address evolving threats, DHS S&T created the Response and Defeat Operations Support (REDOPS) program. REDOPS connects the 466 bomb squads of varying sizes and budgets across the country with the tools and information they need to perform their duties better, faster and more safely. They look at a variety of sources—including the commercial marketplace, responder communities and international partners—for high- and low-tech solutions.

  • Wanted: Smart ideas for grid modernization

    A consortium of national labs and nonprofit organizations has announced a call for concepts to engage the smart grid community in demonstrating visionary interoperability capabilities on how facilities with distributed energy resources, or DERs, integrate and interact with the utility grid.

  • New laser solution could slow spread of forest fires

    By Abigail Klein Leichman

    Aggressive wildfires are rampaging through many countries this summer, bringing death and destruction in their wake. In California alone, firefighters are scrambling to control 18 separate blazes. Texas, Oregon, Florida, New Jersey, as well as Canada, Greece, India, Mexico, Portugal, Spain, Sweden and the U.K. are among other areas battling massive forest fires, a phenomenon experts expect will only increase due to climate change. Israeli company Fighting Treetop Fire is developing a system of removing combustible foliage with algorithm-controlled laser beams controlled via helicopter or truck.

  • Planet at risk of heading towards “Hothouse Earth” state

    An international team of scientists has published a study showing that keeping global warming to within 1.5-2°C may be more difficult than previously assessed, and that even if the carbon emission reductions called for in the Paris Agreement are met, there is a risk of Earth entering what the scientists call “Hothouse Earth” conditions. A “Hothouse Earth” climate will in the long term stabilize at a global average of 4-5°C higher than pre-industrial temperatures with sea level 10-60 m higher than today, the paper says.

  • Blocked from distributing plans for 3D-printed guns, "crypto-anarchist" is still in the DIY gun business

    By Matthew Choi

    Cody Wilson’s group Defense Distributed is known for attempting to upload the digital blueprints for 3D-printed guns. But he also helps customers make unregistered, unserialized conventional firearms, from Glocks to AR-15s.

  • From gun kits to 3D printable guns, a short history of rogue gun makers

    By Timothy D. Lytton

    Gun rights activist Cody Wilson got a green light from the Trump administration in June to publish digital blueprints on the internet that will enable anyone with a 3D printer to make a plastic gun. Wilson’s harnessing of computer technology and his self-proclaimed radical ideology have added a new, unpredictable dimension to America’s struggle to reduce gun violence. But my research into the marketing, distribution and sales practices of the U.S. firearms industry reveals that there is nothing new in attempts by gun makers to exploit loopholes in government regulations. Since the 1980s, anyone can purchase the most lethal of firearms free from all legal restrictions. This has been made possible by small companies, operating on the margins of the gun industry, that sell complete weapons in the form of parts kits. Gun parts – as opposed to whole guns – are not subject to any of the federal regulations that govern firearms sales. No federal license is necessary to sell gun parts. And no background check is needed to purchase them.