We study history largely so we don't repeat the worst it has to offer. Unfortunately, it doesn't always work out that way.
I've been thinking about this a lot in recent weeks as white nationalist bloviating and hate incidents have increased in the wake of the presidential election. The highest-profile incident remains the recent gathering of so-called "alt-right" leaders in Washington, D.C., which ended in multiple Nazi salutes. Leading the charge was Dallas' own Richard Spencer, a young light in the current suit-and-tie white supremacy movement.