• Ensuring Safe Nuclear Waste Disposal

    Disposal concepts call for the waste to be isolated a third of a mile belowground for safe storage, enclosed within engineered barrier systems and surrounded by subsurface rock. But there’s still the chance radionuclides might leak out if these systems lose their protective properties as it heats up due to radioactive decay. International nuclear waste disposal research effort evaluates maximum allowable temperature for buffer material.

  • New Federal Wildfire Plan Is Ambitious – but the Forest Service Needs More Money and People to Fight the Growing Risks

    As foresters who have been working on wildfire and forest restoration issues in the Sierra Nevada for over a quarter of a century, the main lesson we gather from how wildfires have burned is that fuels reduction and forest restoration projects are our best tools for mitigating wildfire impacts amid a changing climate, and not nearly enough of them are being done.

  • Putin “Playing Poker Rather Than Chess”: Former U.K. Spy Chief

    In an interview Tuesday with the BBC, former head of Britain’s MI6 external intelligence agency, Alex Younger, said he cannot see how the Russian leader can back down as fears mount that Putin is poised to order a Russian invasion of Ukraine, a former Soviet republic.

  • Why NATO Has Become a Flash Point with Russia in Ukraine

    Russian leaders have watched with mounting resentment as the transatlantic alliance has nearly doubled its membership since the end of the Cold War. President Vladimir Putin has drawn a red line in Ukraine.

  • How Long Could Ukraine Hold Out Against a Russian Invasion?

    A RAND report from last year and more recent military analyses have examined Russian operational tactics, but far fewer have looked at the other side of the coin: How long could Ukraine’s armed forces hold out against a bigger, more powerful military force like Russia’s?

  • U.S. Still Searching for “Havana Syndrome” Answers

    The CIA has concluded a mysterious illness plaguing American diplomats and other officials around the world is not nearly as widespread as initially feared and is most likely not the work of a foreign adversary. But the agency also cautioned that a smaller number of cases continue to defy explanation.

  • Threats to the U.S. Jewish Community: The Facts

    According to the FBI’s annual data on hate crimes, defined as criminal offenses which are motivated by bias, crimes targeting the Jewish community consistently constitute more than half of all religion-based crimes.

  • ShakeAlert Earthquake Warnings Can Give People Time to Protect Themselves – But So Far, Few Have Actually Done So

    The ShakeAlert system is a remarkable technology, years in the making. It has the potential to save tens of thousands of lives in areas where high-magnitude earthquakes occur by providing a few seconds’ warning – enough time for people to take basic safety precautions. Marvelous as it is, though, ShakeAlert saves lives only if people understand what to do when they receive such an alert – and do it.

  • Massive Cyberattack Targeting Ukraine’s Government Websites

    Several Ukrainian government websites have been targeted in a massive cyberattack amid heightened tensions between the West and Russia, which has massed troops and military equipment near the border with Ukraine.

  • Civil War in the U.S. Is Unlikely Because Grievance Doesn’t Necessarily Translate Directly into Violence

    Claims that America is at the greatest risk of civil war since, well, the Civil War, recently received additional support from some experts in the field of political science. But civil wars are rare events. But even if a civil war in America is unlikely, this does not preclude the occurrence of other forms of less intense violence. Concerns about increased violent extremism in the United States recently led the U.S. Justice Department to establish a new domestic terrorism group.

  • Examining How Countries Go Nuclear — and Why Some Do Not

    In a new book, political scientist Vipin Narang argues that too often we imagine that all countries pursue nuclear weapons the way the U.S. and Soviet Union did during and after World War II — a swift race culminating in the rapid buildup of arsenals, leaving little room for intervention. But that paradigm applies to almost no other country. Recognizing how different countries choose different paths to proliferation is an essential part of arms control: Grasping how one country is pursuing nuclear weapons can help other countries constrain that pursuit.

  • The Progress of Iran’s Nuclear Weapons Program

    As of November 2021, Iran had enough enriched uranium hexafluoride (UF6) in the form of near 20 and 60 percent enriched uranium to produce enough weapon-grade uranium (WGU), taken here as 25 kilograms, for a single nuclear weapon in as little as three weeks. It could do so without using any of its stock of uranium enriched up to 5 percent as feedstock. The growth of Iran’s stocks of near 20 and 60 percent enriched uranium has dangerously reduced breakout timelines.

  • German Police Unlawfully Accessed Data on Contact-Tracing App

    Police investigators in the German city of Mainz used the Luca app to search for witnesses in a case they were working on. To get around federal and state laws banning such use of the contact-tracing app, the city’s prosecutor office simulated a COVID-19 infection originating near the scene of the incident under investigation.

  • DOJ Adding New Unit Dedicated to Combatting Domestic Terrorism

    The Justice Department’s National Security Division is adding a new unit, dedicated to combatting domestic terrorism, as attacks, threats, and associated cases continue to grow. The FBI tells lawmakers that the greatest threat of mass casualty attacks against civilians in the United States comes from racially or ethnically motivated violent extremists.

  • Leveraging Social Media During a Disaster

    During a disaster, many people turn to social media seeking information. But communicating during disasters is challenging, especially using an interactive environment like social media where misinformation can spread easily.