But he’s breaking his covenant now for the reason he took that footage: He is haunted by what the people onscreen will do if their movement — and their moment — aren’t thwarted. Over months of interviews with Scott and his former colleagues, hours-long conversations with domestic-terror experts, and wormhole dives down fascist portals on apps like Gab and Discord, a portrait emerged of a nation under threat from a thousand points of hate. “We’ve seen massive increases in plots and acts” committed by domestic terrorists, says Bruce Hoffman, a Georgetown professor and counterterror authority whose Inside Terrorism is the master text on the subject. “Me and my team lay awake nights kicking the walls, because there’s a million-and-a-half guys online plotting murder,” says Rita Katz, the founder and director of the SITE Intelligence Group, and the author of the forthcoming Saints and Soldiers, which tracks the rise of far-right terror in the age of Trump. “We’re in a business where we can’t be wrong once,” says Scott. “And there’s way more of them than us undercovers.” https://www.rollingstone.com/culture/culture-features/fbi-infiltrator-nazis-kkk-biker-gangs-1280830/