Helio Fred Garcia argues and warns us that consequences of incendiary rhetoric are predictable. He focuses on how Donald Trump's use of dehumanizing language can provoke "lone wolves" to commit acts of violence, a type of violent extremism known as stochastic terrorism. Garcia's goal is to sound the alarm about this insidious spur to violence by spelling out the mechanisms by which it works so that leaders, citizens, journalists, and others can recognize...