Gilsinan: So what can the U.S. do on the policy front? What has your experience been like trying to work with the government on these issues? Are we equipped to deal with this?

Picciolini: I think we can be equipped. There’s just no will to build something about domestic extremism. We don’t currently have any hate-crime laws that apply to online activity, but photoshopping someone’s face onto an Auschwitz prisoner on Twitter isn’t so different from spray-painting a swastika in a synagogue. I think we need to start asking ourselves what kind of policies need to be in place, not to limit speech, but to protect people from it. I don’t know what the answer is there.

Gilsinan: What’s next?

Picciolini: I really think we need to get away from using the term lone wolves, because while they are single actors, they are part of a larger ecosystem. I just think it’s going to get worse before it gets better. They’re all trying to outdo each other, not just the last person, but Timothy McVeigh. Terrorists will always find another way to do it. I have to ask myself, Do we have white-nationalist airline pilots? There have to be. I knew people in powerful positions, in politics, in law enforcement, who were secretly white nationalists. I think we’d be stupid and selfish to think that we don’t have those in the truck-driving industry.