When the government actually feared a Bowling Green massacre -- from a heavily-armed neo-Nazi

This story was co-published with The New York Times. The year was 2012. The place was Bowling Green, Ohio. A federal raid had uncovered what the authorities feared were the makings of a massacre. There were 18 firearms, among them two AR–15 assault rifles, an AR–10 assault rifle and a Remington Model 700 sniper rifle. There…