In two recent columns, we examined the current wave of U.S. political violence, identifying some factors that seem to fit prior historical patterns and others that appear distinct to the current period . Perhaps more important than reviewing the current landscape, however, is considering what comes next. While the frequency, intensity and type of political violence are ever-changing, the fundamental threat is constant. Surveying the horizon, the spread of artificial intelligence (AI) appears very likely to stoke existing extremist ideologies and give rise to new ones, catalyzing violence in the coming years. Thus far, only sporadic violent plots and a few low-level attacks have targeted AI infrastructure like data centers. For the most part, pushback has taken the form of rhetoric and some nonviolent protests.