It’s going to get worse. That’s the warning of a former violent extremist, Christian Picciolini, who joined a neo-Nazi movement 30 years ago and now tries to get people out of them. White-supremacist terrorists—the ones who have left dozens dead in attacks in Pittsburgh, New Zealand, and El Paso, Texas, in recent months—aren’t just trying to outdo one another, he told us. They’re trying to outdo Timothy McVeigh. Picciolini said that even if the U.S. could get a handle on its gun problem, terrorists can always find other ways. McVeigh had his car bomb, the September 11th hijackers had their airplanes, Islamic State attackers have suicide bombings, trucks, and knives. “I have to ask myself, Do we have white-nationalist airline pilots?”

The El Paso, Texas, mass shooting that left 22 dead may actually spell the end for one of white nationalism’s greatest resources: the online radicalization of potential domestic terrorists. The El Paso massacre may be the end of the free speech defense. On Sunday, federal authorities announced that they are not just charging the El Paso suspect with federal hate crimes as they did with the Poway shooter, but with domestic terrorism as well. The decision doesn’t just suggest the Department of Justice (DOJ) is reconsidering whether online forums for white nationalism are a threat worth pursuing at the federal level; by applying “domestic terrorism” to El Paso, the Federal Bureau of Investigation is also actively pushing boundaries of “association” beyond explicit membership.

El Paso, Texas. Poway, California. Christchurch, New Zealand. Three White Power-inspired attacks by three white supremacists who posted paranoid racist manifestos right before the attacks. Three killing sprees. One targeted Muslims, another Jews, the third Hispanics. What they all had in common was 8chan. In just six years, 8chan has achieved a rather unenviable reputation as one of the vilest places on the Internet.

As Americans reflect on two mass shootings that claimed 31 lives last weekend, they’re asking how to stop the carnage. Researchers at a Los Angeles center devoted to tolerance say part of the answer lies in ending hate online. Political leaders and social media companies, they add, must help to tone down the hateful rhetoric.

Experts who have focused on both types of extremism—Islamist and white nationalist—tell me that a fundamental change in the way America views the latter would indeed help combat it, freeing up law-enforcement resources to address the growing problem. FBI Director Christopher Wray told Congress last month that the bureau made about 100 domestic-terrorism arrests in the past nine months, putting it on pace to surpass the total from the previous year, and that the majority of the suspects were motivated by white supremacism. Since 9/11, far-right extremists have killed more people on American soil than Islamist terrorists have.

U.S. plans to keep just a residual force in Syria to ensure the enduring defeat of the Islamic State may be on the verge of backfiring, with some military officials warning the strategy is giving the terror group new life. The doubts, raised in a Defense Department Inspector General report released Tuesday, come as Washington has struggled to secure additional on-the-ground help in Syria from allies and amid renewed warnings that while IS may have lost control of its self-declared caliphate, the group’s fighters are far from defeated.

In the past decade, the language of white supremacists has transformed in important ways. It crossed national borders, broadened its focus and has been influenced by current mainstream political discourse. I study political violence and extremism. In my recent research, I have identified these changes and believe that they can provide important insights into the current landscape of the American and European violent far-right. The changes also allow us to understand how the violent far-right mobilizes support, shapes political perceptions and eventually advances their objectives.

Senior United States military and intelligence officials are sharply divided over how much of a threat the Islamic State in Afghanistan poses to the West, a critical point in the Trump administration’s debate over whether American troops stay or withdraw after nearly 18 years of war. American military commanders in Afghanistan have described the Islamic State affiliate there as a growing problem that is capable of inspiring and directing attacks in Western countries, including the United States. But intelligence officials in Washington disagree.

Facebook Inc. doesn’t have to face a lawsuit by victims of Hamas attacks and their relatives who claimed that the social network unlawfully assisted the terror group, a federal appeals court ruled. the lawsuit was among several around the U.S. testing whether victims of terrorist attacks and their families can hold social-media companies to account for allowing violent extremists to use their platforms to recruit followers. The terrorism victims attempted for the first time to argue that social-media companies could be held liable under the U.S. Anti-Terrorism Act.