GO NAKAMURA / REUTERS Many mass shootings spur pedantic debates about whether an attack “counts” as an act of terrorism. But the man who allegedly shot 22 people dead in El Paso, Texas, left no doubt. According to his manifesto, posted on a favorite political- extremism website minutes before the shooting, he was inspired by other recent white- IDEAS Don  t Give White Nationalists the Post-9/11 Treatment Pundits are now endorsing a massive counterterrorism response to white nationalism. That’s not a good idea. AUG 7, 2019 Max Abrahms Professor of political science at Northeastern University