We've been discussing on Leid Stories what authorities have said appears to be a key factor in each of three recent mass killings in the United States: white supremacy.

But what, exactly, is white supremacy? Is it a new name for the old "racism" we know so well?

Leid Stories returns to a program it aired five years ago that provides perhaps the best explanation of white supremacy.

Our guest, Dr. Jeffrey Perry, an independent working-class scholar, gave a guided tour, based on the seminal works of historian Theodore Allen, whose two-volume book, The Invention of the White Race, chronicles the formulation by power elites in early America of a race-based system of total control. It began in the 1600s, and is the basis of our "democracy" today.