In 1972, amid a worldwide rash of bombings, hijackings, and hostage-takings, the U.S. government was wrestling with how to respond. How widespread were these violent groups? What security measures were necessary? Should the government ever negotiate with hostage-takers? RAND researchers offered help by turning to their specialty: data.

The distribution of propaganda by racially or ethnically motivated violent extremists (RMVEs) remained at historic levels across the United States in 2021, with a total 4,851 cases of racist, anti-Semitic and other hateful messages. The latest data comes amid a surge in anti-Semitic hate fliering in January and February targeting at least 15 states nationwide.

America’s Bill of Rights protects U.S. citizens’ rights to free speech, to bear arms, and to be free from unreasonable searches and seizures, among other things. As the Supreme Court has consistently held, however, no right is absolute: All rights must be balanced against other societal needs, including and especially public safety. Barbara L. McQuade writes that as the threat of domestic terrorism metastasizes in the United States, Americans need to use the practical wisdom urged by Justice Robert L. Jackson – who, in 1949, advised that the Constitution is not “a suicide pact” — to ensure the survival of the republic.

DHS, in its updated National Terrorism Advisory System bulletin released Monday, says that the prevalence of conspiracy theories and bad or misleading information, online and in social media forums, is keeping the United States in a state of heightened alert when it comes to possible terror attacks. DHS warns that while many of the top threat streams have changed little over the past year, almost all of them are being amplified by the information environment.

The operation against Abu Ibrahim al-Hashimi al-Qurayshi arrives at a precarious time for the Islamic State group. The organization’s transition from an Iraq-centric movement to a global insurgency with affiliates dotted across the Middle East, Africa, and Asia is still relatively fresh. Leadership decapitation – or the targeted killing of militant groups’ top leaders – is a key component of counterterrorism and counterinsurgency. It is widely used by many nations, including the United States.

But terrorism experts don’t agree on how effective killing top leaders is.

The Justice Department has raised the stakes with the seditious conspiracy charges filed on Jan. 12 against the Oath Keepers founder, Stewart Rhodes. Jon Lewis and Seamus Hughes write that “The anti-government movement in America is not based on one man or even one organization. There will be more extremist leaders like Stewart Rhodes in the future. However, the most recent prosecution may set the precedent of how to handle those who come after him.”

The FBI joined local and state police to surround a synagogue in Coleville, Texas, a city of about 26,000 residents about 15 miles northeast of Fort Worth, where a man has been holding the rabbi and four other people hostage since late morning. A few minutes ago, the hostage taker released a man who was suffering from a medical condition.

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.

Behind-the-scenes mechanisms feed an item you search for on Google, “like” on social media, or come across while browsing into custom advertising on social media. Those mechanisms are increasingly being used for more nefarious purposes than aggressive advertising. The threat is in how this targeted advertising interacts with today’s extremely divisive political landscape. As a social media researcher, I see how people seeking to radicalize others use targeted advertising to readily move people to extreme views.