Another week, another misogynist and/or white nationalist terrorist attack. They’re urging each other on, they’re forming broad movements, ecosystems, networks of cells. The Base. Atomwaffen. The Rise Above Movement. American Identity Movement. Hammerskin Nation. Wolves of Vinland. European Kindred. Proud Boys. The names and factions proliferate. Hordes congregate online to cheer the latest atrocity and...